{"title":"Mid-IR Nonlinear Crystals","description":"\u003cp\u003eMid-infrared nonlinear crystals for OPO, OPA, DFG and harmonic generation from 1 µm to beyond 10 µm: ZGP, AGS, AGSe, AGGS, AGGSe, HGS, GaSe, BGS, BGSe, BGGSe and LGS. Custom sizes, cut angles and coatings are available on request.\u003c\/p\u003e","products":[{"product_id":"aggse-aggage5se12-nonlinear-crystal","title":"AGGSe (AgGaGe5Se12) Nonlinear Crystal for 1 µm-Pumped Mid-IR, 0.63–16 µm","description":"\u003cdiv class=\"wq-pdp__lbtek-desc\"\u003e\n\u003cp\u003eAGGSe (AgGaGe5Se12) is a newer nonlinear optical crystal for shifting 1 µm solid-state lasers into the 2–12 µm mid-infrared range. Compared with AgGaS2 and AgGaSe2 it offers a higher damage threshold, larger birefringence and band gap, and more phase-matching options, which suits it to higher-power and specialised frequency conversion. It is transparent from 0.63 to 16 µm with a nonlinear coefficient d31 = 28 pm\/V.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTransparency range 0.63–16 µm\u003c\/li\u003e\n\u003cli\u003eNonlinear coefficient d31 = 28 pm\/V\u003c\/li\u003e\n\u003cli\u003eHigher damage threshold than AgGaS2 and AgGaSe2\u003c\/li\u003e\n\u003cli\u003eLarger birefringence and band gap, giving a wider choice of phase-matching schemes\u003c\/li\u003e\n\u003cli\u003eCoated elements up to 18.55 mm long, with HT coatings at 1064 nm, 1550 nm and 5–14 µm\u003c\/li\u003e\n\u003cli\u003eFlatness λ\/8 @ 633 nm, parallelism better than 30 arc sec, orientation accuracy below 30 arc sec\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency down-conversion of 1 µm solid-state lasers into the 2–12 µm range\u003c\/li\u003e\n\u003cli\u003eHigher-power mid-IR frequency conversion as an alternative to AgGaS2 and AgGaSe2\u003c\/li\u003e\n\u003cli\u003eSpecialised nonlinear interactions that need phase-matching schemes not available in AgGaS2 or AgGaSe2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eStandard Sizes\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eCut \/ orientation\u003c\/th\u003e\n\u003cth\u003eSurface \/ coating\u003c\/th\u003e\n\u003cth\u003eMount\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e5.25 × 5.5 × 18.55 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 63°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eS1: HT @ 800–1500 nm (R \u0026lt; 1%); S2: HT @ 1064 nm (R \u0026lt; 1%) + 1550 nm (R \u0026lt; 1%) + 5–14 µm (R \u0026lt; 3%)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5.71 × 5.29 × 13.68 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 61°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eS1: HT @ 800–1500 nm (R \u0026lt; 1%); S2: HT @ 1064 nm (R \u0026lt; 1%) + 1550 nm (R \u0026lt; 1%) + 5–14 µm (R \u0026lt; 3%)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5.72 × 5.58 × 13.7 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 61°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eS1: HT @ 800–1500 nm (R \u0026lt; 1%); S2: HT @ 1064 nm (R \u0026lt; 1%) + 1550 nm (R \u0026lt; 1%) + 5–14 µm (R \u0026lt; 3%)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 0.35 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 65°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 65°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5.5 × 5.5 × 3.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 67°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAvailability of individual sizes changes; custom sizes, cut angles and coatings are available on request.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/aggs-aggages4-nonlinear-crystal\"\u003eAGGS Crystal\u003c\/a\u003e — sulfide variant\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/agse-aggase2-nonlinear-crystal\"\u003eAGSe Crystal\u003c\/a\u003e — mid-IR OPO\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bggse-baga2gese6-nonlinear-crystal\"\u003eBGGSe Crystal\u003c\/a\u003e — large d11\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all: \u003ca href=\"\/collections\/wq-uo-mid-ir-crystals\"\u003eMid-IR Nonlinear Crystals\u003c\/a\u003e · \u003ca href=\"\/collections\/wq-ultrafast-optics-crystals\"\u003eNonlinear Crystals\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eModel: WQ-NLC-AGGSE\u003c\/strong\u003e · Custom sizes, orientations and coatings on request — contact WaveQuanta for a quote and lead time.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":68073586458778,"sku":"WQ-NLC-AGGSE","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/wq-aggse-aggage5se12-nonlinear-crystal-1.jpg?v=1793964843"},{"product_id":"agse-aggase2-nonlinear-crystal","title":"AGSe (AgGaSe2) Nonlinear Crystal for Mid-IR OPO and CO2 SHG, 0.73–18 µm","description":"\u003cdiv class=\"wq-pdp__lbtek-desc\"\u003e\n\u003cp\u003eAGSe (silver gallium selenide, AgGaSe2) is a mid-infrared nonlinear crystal with band edges at 0.73 and 18 µm and a useful transmission range of 0.9–16 µm. Its broad phase-matching capability supports OPOs driven by several pump lasers: tuning over 2.5–12 µm has been obtained with a 2.05 µm Ho:YLF pump, and non-critical phase matching gives 1.9–5.5 µm output with 1.4–1.55 µm pumping. AGSe is also used for frequency doubling of CO2 lasers, and WaveQuanta supplies it with custom cuts and coatings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTransparency range 0.73–18 µm; useful transmission 0.9–16 µm\u003c\/li\u003e\n\u003cli\u003eNonlinear coefficient d36 = 39.5 pm\/V at 10.6 µm\u003c\/li\u003e\n\u003cli\u003eAbsorption below 0.05 cm⁻¹ at 1.064 µm and below 0.02 cm⁻¹ at 10.6 µm\u003c\/li\u003e\n\u003cli\u003eNon-critical phase matching for 1.9–5.5 µm output with 1.4–1.55 µm pumping\u003c\/li\u003e\n\u003cli\u003eOPO tuning over 2.5–12 µm with a 2.05 µm Ho:YLF pump\u003c\/li\u003e\n\u003cli\u003eFlatness λ\/8 @ 633 nm, parallelism better than 30 arc sec\u003c\/li\u003e\n\u003cli\u003eStandard apertures 5 × 5 mm and 8 × 8 mm, lengths 1–30 mm; custom sizes on request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSecond harmonic generation of CO and CO2 lasers\u003c\/li\u003e\n\u003cli\u003eMid-IR OPOs pumped at 1.4–1.55 µm or at 2.05 µm\u003c\/li\u003e\n\u003cli\u003eDifference-frequency generation into the mid- and long-wave infrared\u003c\/li\u003e\n\u003cli\u003eSum- and difference-frequency mixing in the mid-IR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eDispersion (Sellmeier) Equations\u003c\/h3\u003e\n\u003cp\u003eno² = 4.6453 + 2.2057 \/ (1 - 0.1879\/λ²) + 1.8577 \/ (1 - 1600\/λ²)\u003c\/p\u003e\n\u003cp\u003ene² = 5.2912 + 1.3970 \/ (1 - 0.2845\/λ²) + 1.9282 \/ (1 - 1600\/λ²)\u003c\/p\u003e\n\u003cp\u003eλ in µm\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eStandard Sizes\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eCut \/ orientation\u003c\/th\u003e\n\u003cth\u003eSurface \/ coating\u003c\/th\u003e\n\u003cth\u003eMount\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1 \/ 5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 51°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 1.7–2.6 µm; S2: AR @ 5–16 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 55°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 1.7–2.6 µm; S2: AR @ 5–16 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 6 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 51°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eS1: HT @ 1.4–4.5 µm; S2: uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 6 × 0.5 \/ 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 45°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.7–2.8 + 6–14 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9.5 × 8 × 12 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 49°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.7–2.8 + 6–14 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9.5 × 8 × 12 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 55°, φ = 45°, Type I\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.7–2.8 + 6–14 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 0.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 45°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 53.3°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 65°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 52°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 58.8°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 2 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 53.1°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 51°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 1.6 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 41.9°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 53.1°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 45°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1.9 \/ 7 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 51°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 2 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 53.1°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 6 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 52°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 6.35 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 51.2°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 8.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 55°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 12 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 47.1°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 12.7 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 58°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAvailability of individual sizes changes; custom sizes, cut angles and coatings are available on request.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/ags-aggas2-nonlinear-crystal\"\u003eAGS Crystal\u003c\/a\u003e — transparent from 0.5 µm\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/zgp-zngep2-nonlinear-crystal\"\u003eZGP Crystal\u003c\/a\u003e — 2 µm-pumped OPO\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/aggse-aggage5se12-nonlinear-crystal\"\u003eAGGSe Crystal\u003c\/a\u003e — 1 µm-pumped mid-IR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all: \u003ca href=\"\/collections\/wq-uo-mid-ir-crystals\"\u003eMid-IR Nonlinear Crystals\u003c\/a\u003e · \u003ca href=\"\/collections\/wq-ultrafast-optics-crystals\"\u003eNonlinear Crystals\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eModel: WQ-NLC-AGSE\u003c\/strong\u003e · Custom sizes, orientations and coatings on request — contact WaveQuanta for a quote and lead time.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":68073586622618,"sku":"WQ-NLC-AGSE","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/wq-agse-aggase2-nonlinear-crystal-1.jpg?v=1793964854"},{"product_id":"ags-aggas2-nonlinear-crystal","title":"AGS (AgGaS2) Nonlinear Crystal for Mid-IR DFG and OPO, 0.50–13.2 µm","description":"\u003cdiv class=\"wq-pdp__lbtek-desc\"\u003e\n\u003cp\u003eAGS (silver gallium sulfide, AgGaS2) is a mid-infrared nonlinear crystal transparent from 0.50 to 13.2 µm. Its nonlinear coefficient is lower than that of other mid-IR crystals, but its short-wavelength transparency allows pumping by Nd:YAG and other near-IR lasers, and thin AGS plates are commonly used to generate ultrashort mid-IR pulses by difference-frequency mixing of near-IR pulses. WaveQuanta supplies AGS in the standard θ = 39°, φ = 45° orientation as well as custom cuts and coatings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTransparency range 0.50–13.2 µm\u003c\/li\u003e\n\u003cli\u003eNonlinear coefficient d36 = 12.5 pm\/V at 10.6 µm (23.6 pm\/V quoted at 1.064 µm)\u003c\/li\u003e\n\u003cli\u003eSHG phase-matching range 1.8–11.2 µm\u003c\/li\u003e\n\u003cli\u003eDamage threshold 25 MW\/cm² (surface) and 500 MW\/cm² (bulk) at ~10 ns, 1.064 µm\u003c\/li\u003e\n\u003cli\u003eUniform bulk transmission apart from a residual absorption band centred near 1.8 µm\u003c\/li\u003e\n\u003cli\u003eThin plates down to 0.1 mm thickness for femtosecond DFG\u003c\/li\u003e\n\u003cli\u003eStandard orientation θ = 39°, φ = 45°; 5 × 5 mm and 8 × 8 mm apertures, 1–30 mm long; custom orientations on request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUltrashort mid-IR pulse generation by difference-frequency mixing of near-IR pulses in thin plates\u003c\/li\u003e\n\u003cli\u003eDifference-frequency mixing of diode, Ti:sapphire, Nd:YAG and IR dye lasers covering 3–12 µm\u003c\/li\u003e\n\u003cli\u003eOPOs pumped by Nd:YAG and other lasers, tuning within 1.2–10 µm\u003c\/li\u003e\n\u003cli\u003eSecond harmonic generation of CO and CO2 lasers\u003c\/li\u003e\n\u003cli\u003eUp-conversion of CO2 laser images into the near-IR or visible using Nd:YAG, ruby or dye lasers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eDispersion (Sellmeier) Equations\u003c\/h3\u003e\n\u003cp\u003eno² = 3.3970 + 2.3982 \/ (1 - 0.09311\/λ²) + 2.1640 \/ (1 - 950\/λ²)\u003c\/p\u003e\n\u003cp\u003ene² = 3.5873 + 1.9533 \/ (1 - 0.11066\/λ²) + 2.3391 \/ (1 - 1030.7\/λ²)\u003c\/p\u003e\n\u003cp\u003eλ in µm\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eStandard Sizes\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eCut \/ orientation\u003c\/th\u003e\n\u003cth\u003eSurface \/ coating\u003c\/th\u003e\n\u003cth\u003eMount\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 × 3 × 10 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 40.5°, φ = 0°, Type II\u003c\/td\u003e\n\u003ctd\u003eHT\/HT @ 950–1100 nm + 10 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 0.4 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 34°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 1.1–2.6 µm; S2: AR @ 2.4–11 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 0.4 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 39°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.1–2.6 µm + 2.6–12 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 34°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 2.4–5 µm; S2: AR @ 1.2–2.5 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 39°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 1.1–2.6 µm; S2: AR @ 2.4–11 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 36.4°, Type I\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1270 nm + 1561 nm + 6800 nm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 10 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 39.5°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 900–1100 nm + 8–12 µm\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 0.4 \/ 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 37°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.1–2.6 µm + 2.6–12 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 0.4 \/ 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 39°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.1–2.6 µm + 2.6–12 µm\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 0.4 \/ 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 39°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.1–2.6 µm + 2.6–12 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 0.4 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 39°, φ = 45°, Type I\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.1–2.6 µm + 2.6–11 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 39°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.1–2.6 µm + 2.6–11 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 39°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 1.1–2.6 µm; S2: AR @ 2.4–11 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 0.1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 34°, φ = 45°, Type I\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 0.4 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 34°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 2 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 50°, φ = 0°, Type II\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 2 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 54.9°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 0.6 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 39°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 × 3 × 0.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 40°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1 \/ 1.5 \/ 1.75 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 34°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1.4 \/ 2.4 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 55°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 39°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 48°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 2.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 90°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 36.4°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 1 \/ 2 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 50°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 2.8 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 54.9°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 3 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 35.8°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 6 × 1.8 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 52°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 1 \/ 1.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 39°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 2 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 53.3°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 2.6 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 48°, φ = 45°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 3.3 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 66.3°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAvailability of individual sizes changes; custom sizes, cut angles and coatings are available on request.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/agse-aggase2-nonlinear-crystal\"\u003eAGSe Crystal\u003c\/a\u003e — longer-wavelength cut-off\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/lgs-ligas2-nonlinear-crystal\"\u003eLGS Crystal\u003c\/a\u003e — higher damage threshold\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/zgp-zngep2-nonlinear-crystal\"\u003eZGP Crystal\u003c\/a\u003e — larger nonlinear coefficient\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all: \u003ca href=\"\/collections\/wq-uo-mid-ir-crystals\"\u003eMid-IR Nonlinear Crystals\u003c\/a\u003e · \u003ca href=\"\/collections\/wq-ultrafast-optics-crystals\"\u003eNonlinear Crystals\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eModel: WQ-NLC-AGS\u003c\/strong\u003e · Custom sizes, orientations and coatings on request — contact WaveQuanta for a quote and lead time.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":68073586753690,"sku":"WQ-NLC-AGS","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/wq-ags-aggas2-nonlinear-crystal-1.jpg?v=1793964862"},{"product_id":"zgp-zngep2-nonlinear-crystal","title":"ZGP (ZnGeP2) Nonlinear Crystal for Mid-IR OPO, 0.75–12 µm","description":"\u003cdiv class=\"wq-pdp__lbtek-desc\"\u003e\n\u003cp\u003eZGP (zinc germanium phosphide, ZnGeP2) is a mid-infrared nonlinear crystal combining a large nonlinear coefficient (d36 = 75 pm\/V at 9.6 µm), transparency from 0.75 to 12 µm and a thermal conductivity of about 35 W\/(m·K). Its low absorption at 2.0–2.1 µm makes it widely used in 2 µm-pumped OPO and OPA sources tuned across the mid-IR. WaveQuanta supplies ZGP in two grades, C-ZGP and the lower-absorption YS-ZGP, in standard and custom orientations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNonlinear coefficient d36 = 75.0 pm\/V at 9.6 µm (68.9 pm\/V at 10.6 µm)\u003c\/li\u003e\n\u003cli\u003eTransparency range 0.75–12 µm; useful transmission range 2.0–10.0 µm\u003c\/li\u003e\n\u003cli\u003eAbsorption at 2090 nm below 0.05 cm⁻¹ for C-ZGP; YS-ZGP has lower absorption, better homogeneity and higher output efficiency\u003c\/li\u003e\n\u003cli\u003eThermal conductivity 35 W\/(m·K) ⊥c and 36 W\/(m·K) ∥c at 293 K, suited to high-average-power operation\u003c\/li\u003e\n\u003cli\u003eLaser damage threshold 2–5 J\/cm²\u003c\/li\u003e\n\u003cli\u003eMohs hardness 5.5 with good machinability\u003c\/li\u003e\n\u003cli\u003eStandard type I cut at θ = 54° for OPOs pumped at 2.05–2.1 µm with 3.0–6.0 µm output; custom orientations on request\u003c\/li\u003e\n\u003cli\u003eStandard apertures 5 × 5, 6 × 8 and 8 × 12 mm, lengths 1–50 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMid-IR OPO and OPA pumped near 2 µm, tunable in the 3–6 µm range\u003c\/li\u003e\n\u003cli\u003eSecond, third and fourth harmonic generation of CO2 lasers\u003c\/li\u003e\n\u003cli\u003eSecond harmonic generation of CO lasers\u003c\/li\u003e\n\u003cli\u003eSum- and difference-frequency mixing of CO2, CO and other lasers operating within the transparency range\u003c\/li\u003e\n\u003cli\u003eTHz and sub-millimetre-wave generation up to 1000 µm, including 1 µm-pumped schemes with YS-ZGP\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eStandard Sizes\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eCut \/ orientation\u003c\/th\u003e\n\u003cth\u003eSurface \/ coating\u003c\/th\u003e\n\u003cth\u003eMount\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 0.25 \/ 0.5 \/ 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 51°, φ = 0°, Type I\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 1000–4000 nm; S2: AR @ 1500–12000 nm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1 \/ 1.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 51°, φ = 0°, Type I\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 1000–3500 nm; S2: AR @ 3000–12000 nm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 20 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 67°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 5 µm + 10 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 48°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2–3 µm + 5–9 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 12 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 59.6°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1925–1945 + 1975–1995 + 3500–4500 nm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 15 \/ 20 \/ 40 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 54.7°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2.1 µm + 3–5 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 15 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 56.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2050 + 3500–5000 nm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 20 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 53.8°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2–2.1 µm (R \u0026lt; 0.25%) + 5.8–6.8 µm (R \u0026lt; 1%)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 20 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 54.7°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2090 nm (R \u0026lt; 0.25%) + 3–5 µm (R \u0026lt; 1%)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 20 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 55°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2.05 µm + 3–5 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 20 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 56.2°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.9–2.1 µm + 3.8–4.5 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 25 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 50.4°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2090 nm + 2800 nm + 8 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 25 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 50.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2090 nm (R \u0026lt; 0.25%) + 3–5 µm (R \u0026lt; 1%)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 25 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 54.9°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2.09 µm + 3.8–4.6 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 25 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 57.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2.1 µm + 3–5 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 27 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 50.11°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2.09 + 2.8 + 8 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 27 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 50.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2.09 + 2.8 + 8 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 27 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 51.2°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2.09 + 2.8 + 8 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 30 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 54.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2.1 µm + 3–5 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 30 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 54.7°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2090 nm + 3–5 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 8 × 15 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 54°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2090 nm (R \u0026lt; 0.25%) + 3–5 µm (R \u0026lt; 1%)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 8 × 20 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 60°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1938 + 3000–5000 nm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 × 7 × 20 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 62°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.8–4.2 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 6 × 8.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 55°, φ = 0°, Type I\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2.09 µm (R \u0026lt; 0.5%) + 3.5–5 µm (R \u0026lt; 1%)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 1 \/ 4 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 57.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 1.3–2.6 µm; S2: AR @ 3.5–10 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 4 \/ 7.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 57.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.7–3 µm + 5–13 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 20 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 54.7°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2090 nm (R \u0026lt; 0.25%) + 3–5 µm (R \u0026lt; 1%)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12 × 12 × 15 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 54.7°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2090 nm + 3–5 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15 × 15 × 0.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 48.6°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.8–3.5 µm + 5–11 µm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15 × 15 × 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 48.6°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.8–3.5 µm + 5–11 µm\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15 × 15 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 48.6°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2–3.3 µm (R \u0026lt; 2%) + 7–12 µm (R \u0026lt; 5%)\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15 × 15 × 2.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 48.6°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 2–3.3 µm (R \u0026lt; 2%) + 7–12 µm (R \u0026lt; 5%)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 51°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 0.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 66°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 25 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 50.4°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 30 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 54.7°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 8 × 20 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 54°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 8.5 × 0.035 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 48.4°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 × 10 × 0.1 \/ 0.5 \/ 1 mm\u003c\/td\u003e\n\u003ctd\u003e⟨110⟩ cut\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12 × 12 × 15 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 54.7°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAvailability of individual sizes changes; custom sizes, cut angles and coatings are available on request.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/ags-aggas2-nonlinear-crystal\"\u003eAGS Crystal\u003c\/a\u003e — wider transparency to 13 µm\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/agse-aggase2-nonlinear-crystal\"\u003eAGSe Crystal\u003c\/a\u003e — transparency to 18 µm\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bgse-baga4se7-nonlinear-crystal\"\u003eBGSe Crystal\u003c\/a\u003e — pumped at 1 µm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all: \u003ca href=\"\/collections\/wq-uo-mid-ir-crystals\"\u003eMid-IR Nonlinear Crystals\u003c\/a\u003e · \u003ca href=\"\/collections\/wq-ultrafast-optics-crystals\"\u003eNonlinear Crystals\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eModel: WQ-NLC-ZGP\u003c\/strong\u003e · Custom sizes, orientations and coatings on request — contact WaveQuanta for a quote and lead time.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":68073586819226,"sku":"WQ-NLC-ZGP","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/wq-zgp-zngep2-nonlinear-crystal-1.jpg?v=1793964876"},{"product_id":"bgs-baga4s7-nonlinear-crystal","title":"BGS (BaGa4S7) Mid-IR Nonlinear Crystal for OPO and OPA, 0.35–13.7 µm","description":"\u003cdiv class=\"wq-pdp__lbtek-desc\"\u003e\n\u003cp\u003eBGS (barium gallium sulfide, BaGa4S7) is a mid-infrared nonlinear crystal with a wide band gap of 3.54 eV and stable chemical properties. It transmits from 0.35 µm to 13.7 µm and shows no two-photon absorption at 1 µm, so it can be pumped directly by 1064 nm Nd:YAG lasers or by commercially common 1030 nm femtosecond lasers. WaveQuanta supplies BGS as oriented blanks and as coated elements for OPO, OPA, DFG, SFG and OPG.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTransmission range 0.35–13.7 µm (UV cut-off 350 nm, IR cut-off 13.7 µm)\u003c\/li\u003e\n\u003cli\u003eBand gap 3.54 eV\u003c\/li\u003e\n\u003cli\u003eNonlinear coefficient d33 = 12.7 pm\/V\u003c\/li\u003e\n\u003cli\u003eNo two-photon absorption at 1 µm, allowing pumping at 1064 nm or 1030 nm\u003c\/li\u003e\n\u003cli\u003eChemically stable\u003c\/li\u003e\n\u003cli\u003eFlatness λ\/8 @ 632.8 nm and parallelism 30″\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMid-IR OPO pumped by 1064 nm Nd:YAG lasers\u003c\/li\u003e\n\u003cli\u003eOPA and OPG pumped by 1030 nm femtosecond lasers\u003c\/li\u003e\n\u003cli\u003eDifference-frequency generation (DFG) in the mid-IR\u003c\/li\u003e\n\u003cli\u003eSum-frequency generation (SFG)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eStandard Sizes\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eCut \/ orientation\u003c\/th\u003e\n\u003cth\u003eSurface \/ coating\u003c\/th\u003e\n\u003cth\u003eMount\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 3 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 14°, φ = 0°, XZ-cut\u003c\/td\u003e\n\u003ctd\u003eAR\/AR @ 1.0–1.3 µm + 6–11 µm\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 9.8 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 12.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 1–1.3 µm; S2: P-coating @ 8 µm\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 10 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 13°, φ = 0°, XZ-cut\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 2.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 47.6°, φ = 90°, YZ-cut\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 8 × 3.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 47.6°, φ = 90°, YZ-cut\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAvailability of individual sizes changes; custom sizes, cut angles and coatings are available on request.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bgse-baga4se7-nonlinear-crystal\"\u003eBGSe Crystal\u003c\/a\u003e — selenide version\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/lgs-ligas2-nonlinear-crystal\"\u003eLGS Crystal\u003c\/a\u003e — 1 µm-pumped mid-IR\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/aggs-aggages4-nonlinear-crystal\"\u003eAGGS Crystal\u003c\/a\u003e — wide transparency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all: \u003ca href=\"\/collections\/wq-uo-mid-ir-crystals\"\u003eMid-IR Nonlinear Crystals\u003c\/a\u003e · \u003ca href=\"\/collections\/wq-ultrafast-optics-crystals\"\u003eNonlinear Crystals\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eModel: WQ-NLC-BGS\u003c\/strong\u003e · Custom sizes, orientations and coatings on request — contact WaveQuanta for a quote and lead time.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":68073586950298,"sku":"WQ-NLC-BGS","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/wq-bgs-baga4s7-nonlinear-crystal-1.jpg?v=1793968056"},{"product_id":"lgs-ligas2-nonlinear-crystal","title":"LGS (LiGaS2) Nonlinear Crystal for Mid-IR OPO and OPA, 0.32–11.6 µm","description":"\u003cdiv class=\"wq-pdp__lbtek-desc\"\u003e\n\u003cp\u003eLGS (LiGaS2) is an orthorhombic mid-infrared nonlinear crystal with a wide band gap, low two-photon absorption, small group-velocity mismatch, high thermal conductivity and low thermal expansion. Its UV cut-off near 320 nm allows pumping with visible and all-solid-state near-IR lasers, and mid-IR sources based on LGS have reached tuning ranges covering 3.0–11.5 µm. It is used for OPO, OPA, DFG and SHG.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEffective transmission range 0.32–11.6 µm\u003c\/li\u003e\n\u003cli\u003eUV cut-off at about 320 nm, allowing pumping by visible and near-IR solid-state lasers\u003c\/li\u003e\n\u003cli\u003eDamage threshold over 50 GW\/cm² at 1030 nm, 300 fs\u003c\/li\u003e\n\u003cli\u003eThermal conductivity 6–8 W\/(m·K)\u003c\/li\u003e\n\u003cli\u003eLow thermal expansion: αa ≈ 1.5 × 10⁻⁶ \/K, αc ≈ 2.0 × 10⁻⁶ \/K\u003c\/li\u003e\n\u003cli\u003eLow two-photon absorption and small group-velocity mismatch\u003c\/li\u003e\n\u003cli\u003eMid-IR output tunable over 3.0–11.5 µm has been demonstrated\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMid-IR optical parametric oscillators (OPO)\u003c\/li\u003e\n\u003cli\u003eOptical parametric amplifiers (OPA)\u003c\/li\u003e\n\u003cli\u003eDifference-frequency generation (DFG)\u003c\/li\u003e\n\u003cli\u003eSecond-harmonic generation (SHG)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bgs-baga4s7-nonlinear-crystal\"\u003eBGS Crystal\u003c\/a\u003e — wide transparency\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/ags-aggas2-nonlinear-crystal\"\u003eAGS Crystal\u003c\/a\u003e — mid-IR DFG\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/aggs-aggages4-nonlinear-crystal\"\u003eAGGS Crystal\u003c\/a\u003e — 1 µm-pumped mid-IR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all: \u003ca href=\"\/collections\/wq-uo-mid-ir-crystals\"\u003eMid-IR Nonlinear Crystals\u003c\/a\u003e · \u003ca href=\"\/collections\/wq-ultrafast-optics-crystals\"\u003eNonlinear Crystals\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eModel: WQ-NLC-LGS\u003c\/strong\u003e · Custom sizes, orientations and coatings on request — contact WaveQuanta for a quote and lead time.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":68073587081370,"sku":"WQ-NLC-LGS","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/wq-lgs-ligas2-nonlinear-crystal-1.jpg?v=1793968060"},{"product_id":"gase-gallium-selenide-nonlinear-crystal","title":"GaSe (Gallium Selenide) Nonlinear Crystal for Mid-IR SHG and THz, 0.62–20 µm","description":"\u003cdiv class=\"wq-pdp__lbtek-desc\"\u003e\n\u003cp\u003eGallium selenide (GaSe) is a layered nonlinear crystal with a d22 coefficient of 54 pm\/V and a transparency range of 0.62–20 µm. It is used for frequency doubling of mid-IR lasers such as CO2, CO and DF lasers, for up-conversion of IR radiation into the visible, for optical parametric generation and for THz generation. Because GaSe cleaves along the (001) plane and cannot be cut at arbitrary phase-matching angles, WaveQuanta supplies it as thin mounted plates, from 0.1 mm to 3 mm thick.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTransparency range 0.62–20 µm\u003c\/li\u003e\n\u003cli\u003eNonlinear coefficient d22 = 54 pm\/V\u003c\/li\u003e\n\u003cli\u003eOptical damage threshold 30 MW\/cm² at 1.064 µm (10 ns) and 28 MW\/cm² at 9.3 µm (150 ns)\u003c\/li\u003e\n\u003cli\u003eUp to 9% conversion efficiency reported for CO2 laser SHG\u003c\/li\u003e\n\u003cli\u003eTHz generation in the 0.1–4 THz range\u003c\/li\u003e\n\u003cli\u003eSoft, layered crystal (Mohs hardness 2) that cleaves along the (001) plane\u003c\/li\u003e\n\u003cli\u003ePlates are thinned layer by layer from a thicker blank; 0.2 mm is the usual minimum thickness, and 0.1 mm plates can be made without a flatness guarantee\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSecond-harmonic generation of CO2, CO and chemical DF (λ = 2.36 µm) lasers\u003c\/li\u003e\n\u003cli\u003eUp-conversion of CO and CO2 laser radiation into the visible range\u003c\/li\u003e\n\u003cli\u003eMid-IR pulse generation by difference-frequency mixing of Nd lasers with IR dye or F-centre lasers\u003c\/li\u003e\n\u003cli\u003eOptical parametric generation within 3.5–18 µm\u003c\/li\u003e\n\u003cli\u003eTHz (T-ray) generation, 0.1–4 THz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eStandard Sizes\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eCut \/ orientation\u003c\/th\u003e\n\u003cth\u003eSurface \/ coating\u003c\/th\u003e\n\u003cth\u003eMount\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ5 × 0.2 mm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ5 × 0.3 mm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ7 × 0.2 mm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ7 × 0.3 mm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ7 × 0.5 mm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ7 × 0.6 mm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ7 × 0.8 mm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ7 × 1 mm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ7 × 2 mm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ7 × 3 mm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ8 × 0.1 mm\u003c\/td\u003e\n\u003ctd\u003eZ-cut\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ8 × 0.4 mm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ8 × 0.6 mm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eØ8 × 2 mm\u003c\/td\u003e\n\u003ctd\u003eZ-cut\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 1 mm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eMounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAvailability of individual sizes changes; custom sizes, cut angles and coatings are available on request.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/zgp-zngep2-nonlinear-crystal\"\u003eZGP Crystal\u003c\/a\u003e — mid-IR OPO\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/agse-aggase2-nonlinear-crystal\"\u003eAGSe Crystal\u003c\/a\u003e — CO2 laser SHG\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bgse-baga4se7-nonlinear-crystal\"\u003eBGSe Crystal\u003c\/a\u003e — THz and mid-IR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all: \u003ca href=\"\/collections\/wq-uo-mid-ir-crystals\"\u003eMid-IR Nonlinear Crystals\u003c\/a\u003e · \u003ca href=\"\/collections\/wq-ultrafast-optics-crystals\"\u003eNonlinear Crystals\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eModel: WQ-NLC-GASE\u003c\/strong\u003e · Custom sizes, orientations and coatings on request — contact WaveQuanta for a quote and lead time.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":68073587245210,"sku":"WQ-NLC-GASE","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/wq-gase-gallium-selenide-nonlinear-crystal-1.jpg?v=1793964894"},{"product_id":"bggse-baga2gese6-nonlinear-crystal","title":"BGGSe (BaGa2GeSe6) Nonlinear Crystal for Mid-IR, 0.5–18 µm, d11 = 66 pm\/V","description":"\u003cdiv class=\"wq-pdp__lbtek-desc\"\u003e\n\u003cp\u003eBGGSe (BaGa2GeSe6) is a mid-infrared nonlinear crystal transparent from 0.5 to 18 µm, with a nonlinear coefficient of d11 = 66 ± 15 pm\/V and an optical damage threshold of 110 MW\/cm². It is used for frequency conversion of laser radiation into and within the mid-IR, including SHG of CO and CO2 lasers and difference-frequency generation. WaveQuanta supplies BGGSe as oriented blanks and as polished, uncoated elements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTransparency range 0.5–18 µm\u003c\/li\u003e\n\u003cli\u003eNonlinear coefficient d11 = 66 ± 15 pm\/V\u003c\/li\u003e\n\u003cli\u003eOptical damage threshold 110 MW\/cm², compared with 78 MW\/cm² for ZnGeP2, 30 MW\/cm² for GaSe and 20 MW\/cm² for AgGaSe2\u003c\/li\u003e\n\u003cli\u003eBroadband two-stage frequency conversion of multi-line CO laser radiation within 2.5–9.0 µm, reported with higher efficiency than in ZnGeP2 and AgGaSe2\u003c\/li\u003e\n\u003cli\u003eSome wavelength combinations give an effective nonlinear coefficient that changes only slightly over a wide frequency band\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSecond-harmonic generation of CO and CO2 laser radiation\u003c\/li\u003e\n\u003cli\u003eTwo-stage frequency conversion of multi-line CO lasers within 2.5–9.0 µm\u003c\/li\u003e\n\u003cli\u003eDifference-frequency generation (DFG) in the mid-IR\u003c\/li\u003e\n\u003cli\u003eNonlinear frequency conversion across the 0.5–18 µm transparency range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eStandard Sizes\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eCut \/ orientation\u003c\/th\u003e\n\u003cth\u003eSurface \/ coating\u003c\/th\u003e\n\u003cth\u003eMount\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 0.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 23°, φ = 42.7°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 23°, φ = 42.7°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 2 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 23°, φ = 42.7°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 3 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 23°, φ = 42.7°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 32.1°, φ = 12.7°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 2 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 32.1°, φ = 12.7°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5.8 × 6.1 × 17.7 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 22.7°, φ = 30°, Type I\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 × 6 × 10 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 27°, φ = 42.7°\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 × 7 × 10.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 26°, φ = 42.7°, Type I\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 × 10 × 4.95 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 25.2°, φ = 42.7°, Type I\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAvailability of individual sizes changes; custom sizes, cut angles and coatings are available on request.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bgse-baga4se7-nonlinear-crystal\"\u003eBGSe Crystal\u003c\/a\u003e — related barium selenide\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/aggse-aggage5se12-nonlinear-crystal\"\u003eAGGSe Crystal\u003c\/a\u003e — 1 µm-pumped mid-IR\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/zgp-zngep2-nonlinear-crystal\"\u003eZGP Crystal\u003c\/a\u003e — mid-IR OPO\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all: \u003ca href=\"\/collections\/wq-uo-mid-ir-crystals\"\u003eMid-IR Nonlinear Crystals\u003c\/a\u003e · \u003ca href=\"\/collections\/wq-ultrafast-optics-crystals\"\u003eNonlinear Crystals\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eModel: WQ-NLC-BGGSE\u003c\/strong\u003e · Custom sizes, orientations and coatings on request — contact WaveQuanta for a quote and lead time.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":68073587376282,"sku":"WQ-NLC-BGGSE","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/wq-bggse-baga2gese6-nonlinear-crystal-1.jpg?v=1793964907"},{"product_id":"aggs-aggages4-nonlinear-crystal","title":"AGGS (AgGaGeS4) Nonlinear Crystal for 1 µm-Pumped Mid-IR, 0.5–11.5 µm","description":"\u003cdiv class=\"wq-pdp__lbtek-desc\"\u003e\n\u003cp\u003eAGGS (AgGaGeS4) is a solid-solution nonlinear crystal transparent from 0.5 to 11.5 µm, with a nonlinear coefficient d31 = 15 pm\/V and an absorption coefficient of 0.05 cm⁻¹ at 1064 nm. It is used to shift 1.064 µm Nd:YAG output into the 4–11 µm mid-infrared range. Compared with its parent compounds it has a higher laser damage threshold and a wider choice of phase-matching conditions, making it an option alongside AgGaS2 for sustained, higher-power frequency conversion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTransparency range 0.5–11.5 µm\u003c\/li\u003e\n\u003cli\u003eNonlinear coefficient d31 = 15 pm\/V\u003c\/li\u003e\n\u003cli\u003eAbsorption coefficient 0.05 cm⁻¹ at 1064 nm\u003c\/li\u003e\n\u003cli\u003eDamage threshold 1.08 J\/cm² (surface) and 1.39 J\/cm² (bulk)\u003c\/li\u003e\n\u003cli\u003eHigher damage threshold and more phase-matching options than its parent crystals\u003c\/li\u003e\n\u003cli\u003eStandard apertures 5 × 5 mm and 8 × 8 mm, lengths 1–30 mm; custom sizes on request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency shifting of 1.064 µm Nd:YAG lasers into the 4–11 µm mid-IR\u003c\/li\u003e\n\u003cli\u003eSustained, higher-power mid-IR frequency conversion where AgGaS2 is damage-limited\u003c\/li\u003e\n\u003cli\u003eNonlinear interactions that need phase-matching schemes not available in AgGaS2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eStandard Sizes\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eCut \/ orientation\u003c\/th\u003e\n\u003cth\u003eSurface \/ coating\u003c\/th\u003e\n\u003cth\u003eMount\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e5.8 × 5.7 × 1.9 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 50°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10.8 × 11.4 × 1.9 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 50°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank (unpolished)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAvailability of individual sizes changes; custom sizes, cut angles and coatings are available on request.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/aggse-aggage5se12-nonlinear-crystal\"\u003eAGGSe Crystal\u003c\/a\u003e — selenide variant\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/lgs-ligas2-nonlinear-crystal\"\u003eLGS Crystal\u003c\/a\u003e — 1 µm-pumped mid-IR\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bgs-baga4s7-nonlinear-crystal\"\u003eBGS Crystal\u003c\/a\u003e — wide transparency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all: \u003ca href=\"\/collections\/wq-uo-mid-ir-crystals\"\u003eMid-IR Nonlinear Crystals\u003c\/a\u003e · \u003ca href=\"\/collections\/wq-ultrafast-optics-crystals\"\u003eNonlinear Crystals\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eModel: WQ-NLC-AGGS\u003c\/strong\u003e · Custom sizes, orientations and coatings on request — contact WaveQuanta for a quote and lead time.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":68073587540122,"sku":"WQ-NLC-AGGS","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/wq-aggs-aggages4-nonlinear-crystal-1.jpg?v=1793964915"},{"product_id":"hgs-hgga2s4-nonlinear-crystal","title":"HGS (HgGa2S4) Nonlinear Crystal for Mid-IR SHG and OPO, 0.55–13 µm","description":"\u003cdiv class=\"wq-pdp__lbtek-desc\"\u003e\n\u003cp\u003eHGS (mercury thiogallate, HgGa2S4) is a negative uniaxial nonlinear crystal transparent from 0.55 to 13 µm. Its laser damage threshold and conversion efficiency support frequency doubling and OPO\/OPA operation across 1.0–10 µm; a 4 mm long element has shown about 10% SHG efficiency for CO2 laser radiation (30 ns pulses, 60 MW\/cm²). Large HGS crystals are difficult to grow, so available apertures are confirmed at the time of quotation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTransparency range 0.55–13.00 µm\u003c\/li\u003e\n\u003cli\u003eNegative uniaxial crystal (no \u0026gt; ne)\u003c\/li\u003e\n\u003cli\u003eEnergy gap 2.34 eV\u003c\/li\u003e\n\u003cli\u003eAbout 10% CO2 laser SHG efficiency in a 4 mm long element (30 ns, 60 MW\/cm²)\u003c\/li\u003e\n\u003cli\u003eSuitable for frequency doubling and OPO\/OPA in the 1.0–10 µm range\u003c\/li\u003e\n\u003cli\u003eMohs hardness 3–3.5; density 4.95 g\/cm³\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSecond harmonic generation of CO and CO2 lasers\u003c\/li\u003e\n\u003cli\u003eOptical parametric oscillators and amplifiers in the 1.0–10 µm range\u003c\/li\u003e\n\u003cli\u003eDifference-frequency generation into the mid-IR\u003c\/li\u003e\n\u003cli\u003eFrequency mixing in the mid-IR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/ags-aggas2-nonlinear-crystal\"\u003eAGS Crystal\u003c\/a\u003e — mid-IR DFG\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/lgs-ligas2-nonlinear-crystal\"\u003eLGS Crystal\u003c\/a\u003e — 1 µm-pumped OPO\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/zgp-zngep2-nonlinear-crystal\"\u003eZGP Crystal\u003c\/a\u003e — high-power mid-IR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all: \u003ca href=\"\/collections\/wq-uo-mid-ir-crystals\"\u003eMid-IR Nonlinear Crystals\u003c\/a\u003e · \u003ca href=\"\/collections\/wq-ultrafast-optics-crystals\"\u003eNonlinear Crystals\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eModel: WQ-NLC-HGS\u003c\/strong\u003e · Custom sizes, orientations and coatings on request — contact WaveQuanta for a quote and lead time.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":68073589637274,"sku":"WQ-NLC-HGS","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/wq-hgs-hgga2s4-nonlinear-crystal-1.jpg?v=1793964958"},{"product_id":"bgse-baga4se7-nonlinear-crystal","title":"BGSe (BaGa4Se7) Nonlinear Crystal for Mid-IR, 0.47–18 µm, d11 = 24 pm\/V","description":"\u003cdiv class=\"wq-pdp__lbtek-desc\"\u003e\n\u003cp\u003eBGSe (BaGa4Se7) is the selenide analogue of BaGa4S7 and a comparatively new mid-infrared nonlinear crystal, grown by the Bridgman–Stockbarger technique. It transmits from 0.47 to 18 µm, apart from an absorption peak near 15 µm, and combines a nonlinear coefficient of d11 = 24 pm\/V with a surface damage threshold of 557 MW\/cm² at 1.064 µm. WaveQuanta supplies BGSe as oriented blanks, polished elements and coated elements for OPO, OPA and DFG with pump sources from 1 to 3 µm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eNote: BGSe is a newly developed crystal and individual pieces may contain a few internal streaks. These do not affect stable performance, and returns are not accepted on the grounds of such streaks.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTransmission range 0.47–18 µm, with an absorption peak near 15 µm\u003c\/li\u003e\n\u003cli\u003eNonlinear coefficient d11 = 24 pm\/V; powder SHG response about 2–3 times that of AgGaS2\u003c\/li\u003e\n\u003cli\u003eSurface damage threshold 557 MW\/cm² at 1.064 µm (5 ns), about 3.7 times that of AgGaS2 under the same conditions\u003c\/li\u003e\n\u003cli\u003eAccepts pump sources from 1 to 3 µm, with tunable output over 3–18 µm\u003c\/li\u003e\n\u003cli\u003eThermal expansion with low anisotropy: 9.24–11.70 × 10⁻⁶ \/K along the three axes\u003c\/li\u003e\n\u003cli\u003eAbout 65% transmittance over 1–14 µm through a polished 2 mm thick (001) plate\u003c\/li\u003e\n\u003cli\u003eShows terahertz phonon-polaritons and is studied for THz generation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMid-IR OPO and OPA pumped at 1–3 µm\u003c\/li\u003e\n\u003cli\u003eDifference-frequency generation (DFG) for tunable 3–18 µm output\u003c\/li\u003e\n\u003cli\u003eIntracavity and extracavity frequency conversion, with CW or pulsed pumping\u003c\/li\u003e\n\u003cli\u003eTerahertz generation research\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eStandard Sizes\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eCut \/ orientation\u003c\/th\u003e\n\u003cth\u003eSurface \/ coating\u003c\/th\u003e\n\u003cth\u003eMount\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 × 3 × 5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 42°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 × 7 × 15 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 40.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 × 7 × 20 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 40.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 × 7 × 30 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 40.5°, φ = 0°, Type I, XZ-cut\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 1–1.5 µm (R \u0026lt; 0.2%); S2: HT @ 10–16 µm + 1–1.5 µm (R \u0026lt; 4%)\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 40.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 1–3 µm; S2: AR @ 3–20 µm\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 40.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 40.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 1–3 µm; S2: AR @ 3–20 µm\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 2 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 40.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 2 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 40.5°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eS1: AR @ 1–3 µm; S2: AR @ 3–20 µm\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 3 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 60°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 5 × 4 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 60°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 × 6 × 5 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 10°, φ = 90°\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 × 7 × 2 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 44°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 × 7 × 2 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 44°, φ = 0°, XZ-cut\u003c\/td\u003e\n\u003ctd\u003eS1: HT @ 1.4–2.3 µm; S2: HT @ 5–9 µm\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7.2 × 6.4 × 2.3 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 47°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7.2 × 6.4 × 3.3 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 47°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003eBlank\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 × 10 × 1 mm\u003c\/td\u003e\n\u003ctd\u003eθ = 43°, φ = 0°\u003c\/td\u003e\n\u003ctd\u003ePolished, uncoated\u003c\/td\u003e\n\u003ctd\u003eUnmounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAvailability of individual sizes changes; custom sizes, cut angles and coatings are available on request.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bgs-baga4s7-nonlinear-crystal\"\u003eBGS Crystal\u003c\/a\u003e — sulfide version\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bggse-baga2gese6-nonlinear-crystal\"\u003eBGGSe Crystal\u003c\/a\u003e — larger d11\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/zgp-zngep2-nonlinear-crystal\"\u003eZGP Crystal\u003c\/a\u003e — 2 µm-pumped OPO\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all: \u003ca href=\"\/collections\/wq-uo-mid-ir-crystals\"\u003eMid-IR Nonlinear Crystals\u003c\/a\u003e · \u003ca href=\"\/collections\/wq-ultrafast-optics-crystals\"\u003eNonlinear Crystals\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eModel: WQ-NLC-BGSE\u003c\/strong\u003e · Custom sizes, orientations and coatings on request — contact WaveQuanta for a quote and lead time.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":68073589768346,"sku":"WQ-NLC-BGSE","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/wq-bgse-baga4se7-nonlinear-crystal-1.jpg?v=1793964964"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/collections\/wq-aggse-aggage5se12-nonlinear-crystal-1.jpg?v=1793965008","url":"https:\/\/waveqvanta.com\/collections\/wq-uo-mid-ir-crystals.oembed","provider":"WaveQuanta","version":"1.0","type":"link"}