{"title":"ND Filters","description":"\u003cp\u003eNeutral density (ND) filters for ultrafast laser power attenuation. Reflective and absorptive designs with high LIDT for in-line attenuation in fs\/ps amplifier output stages.\u003c\/p\u003e","products":[{"product_id":"ng11-absorptive-nd-filter-25-4mm-od1-0","title":"NG11 Absorptive ND Filter, Ø25.4 mm, OD 1.0","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis mounted absorptive neutral density filter carries a broadband AR coating (350–700 nm) on both surfaces, minimizing surface reflection (average R \u0026lt; 0.5% at normal incidence) to reduce stray light. It is mounted in an SM1-threaded Ø1\" lens tube compatible with cage systems and lens tubes; the cell can be removed by loosening the retaining ring. Unlike metallic ND filters, absorptive ND filters are made from Schott-family glasses with a spectrally flat absorption coefficient, delivering uniform attenuation across the visible band.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBroadband beam attenuation\u003c\/li\u003e\n  \u003cli\u003eLaser power \/ intensity control\u003c\/li\u003e\n  \u003cli\u003eImaging \u0026amp; detector protection\u003c\/li\u003e\n  \u003cli\u003eOptical measurement \u0026amp; illumination control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e NG11 (Schott absorptive glass)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e AR Coating (BBAR, 350–700 nm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Ø25.4 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 1.9 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 350–700 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 1.0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating spec:\u003c\/strong\u003e BBAR@350-700 nm, Ravg\u0026lt;0.5%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;20 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e SM1-threaded Ø1\" lens tube (SM1L03)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall thickness (housed):\u003c\/strong\u003e 11.4 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 60-40 Scratch-Dig\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/4 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194683338906,"sku":"O-NDF-25.4-1.9-BL514","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664693-nd-main.png?v=1780478322"},{"product_id":"ng9-absorptive-nd-filter-25-4mm-od3-0","title":"NG9 Absorptive ND Filter, Ø25.4 mm, OD 3.0","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis mounted absorptive neutral density filter carries a broadband AR coating (350–700 nm) on both surfaces, minimizing surface reflection (average R \u0026lt; 0.5% at normal incidence) to reduce stray light. It is mounted in an SM1-threaded Ø1\" lens tube compatible with cage systems and lens tubes; the cell can be removed by loosening the retaining ring. Unlike metallic ND filters, absorptive ND filters are made from Schott-family glasses with a spectrally flat absorption coefficient, delivering uniform attenuation across the visible band.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBroadband beam attenuation\u003c\/li\u003e\n  \u003cli\u003eLaser power \/ intensity control\u003c\/li\u003e\n  \u003cli\u003eImaging \u0026amp; detector protection\u003c\/li\u003e\n  \u003cli\u003eOptical measurement \u0026amp; illumination control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e NG9 (Schott absorptive glass)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e AR Coating (BBAR, 350–700 nm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Ø25.4 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.1 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 350–700 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 3.0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating spec:\u003c\/strong\u003e BBAR@350-700 nm, Ravg\u0026lt;0.5%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;20 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e SM1-threaded Ø1\" lens tube (SM1L03)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall thickness (housed):\u003c\/strong\u003e 11.4 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 60-40 Scratch-Dig\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/4 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194695495834,"sku":"O-NDF-25.4-2.1-BL515","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664694-nd-main.png?v=1780478338"},{"product_id":"absorptive-nd-filter-25-4mm-od0-2","title":"Absorptive ND Filter, Ø25.4 mm, OD 0.2","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAbsorptive neutral density filters use neutral absorbing glass (NG-series colored glass) as the substrate, achieving uniform attenuation through broadband bulk absorption with nearly wavelength-independent behavior across the visible range — reducing intensity while preserving the original spectral shape. Simple, stable, and cost-effective, they are often paired with a double-sided AR coating to lower surface reflection and raise effective transmission. Widely used for imaging brightness control, optical measurement, detector protection, and laboratory intensity adjustment.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBroadband beam attenuation\u003c\/li\u003e\n  \u003cli\u003eLaser power \/ intensity control\u003c\/li\u003e\n  \u003cli\u003eImaging \u0026amp; detector protection\u003c\/li\u003e\n  \u003cli\u003eOptical measurement \u0026amp; illumination control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e Neutral Absorbing Glass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Ø25.4 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–700 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 0.2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194696839322,"sku":"O-NDF-25.4-2.0-BL516","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664695-nd-main.png?v=1780478353"},{"product_id":"absorptive-nd-filter-25-4mm-od0-4","title":"Absorptive ND Filter, Ø25.4 mm, OD 0.4","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAbsorptive neutral density filters use neutral absorbing glass (NG-series colored glass) as the substrate, achieving uniform attenuation through broadband bulk absorption with nearly wavelength-independent behavior across the visible range — reducing intensity while preserving the original spectral shape. Simple, stable, and cost-effective, they are often paired with a double-sided AR coating to lower surface reflection and raise effective transmission. Widely used for imaging brightness control, optical measurement, detector protection, and laboratory intensity adjustment.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBroadband beam attenuation\u003c\/li\u003e\n  \u003cli\u003eLaser power \/ intensity control\u003c\/li\u003e\n  \u003cli\u003eImaging \u0026amp; detector protection\u003c\/li\u003e\n  \u003cli\u003eOptical measurement \u0026amp; illumination control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e Neutral Absorbing Glass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Ø25.4 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–700 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 0.4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194697658522,"sku":"O-NDF-25.4-2.0-BL517","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664696-nd-main.png?v=1780478367"},{"product_id":"absorptive-nd-filter-25-4mm-od0-5","title":"Absorptive ND Filter, Ø25.4 mm, OD 0.5","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAbsorptive neutral density filters use neutral absorbing glass (NG-series colored glass) as the substrate, achieving uniform attenuation through broadband bulk absorption with nearly wavelength-independent behavior across the visible range — reducing intensity while preserving the original spectral shape. Simple, stable, and cost-effective, they are often paired with a double-sided AR coating to lower surface reflection and raise effective transmission. Widely used for imaging brightness control, optical measurement, detector protection, and laboratory intensity adjustment.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBroadband beam attenuation\u003c\/li\u003e\n  \u003cli\u003eLaser power \/ intensity control\u003c\/li\u003e\n  \u003cli\u003eImaging \u0026amp; detector protection\u003c\/li\u003e\n  \u003cli\u003eOptical measurement \u0026amp; illumination control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e Neutral Absorbing Glass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Ø25.4 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–700 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 0.5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194698018970,"sku":"O-NDF-25.4-2.0-BL518","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664697-nd-main.png?v=1780478375"},{"product_id":"absorptive-nd-filter-25-4mm-od0-8","title":"Absorptive ND Filter, Ø25.4 mm, OD 0.8","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAbsorptive neutral density filters use neutral absorbing glass (NG-series colored glass) as the substrate, achieving uniform attenuation through broadband bulk absorption with nearly wavelength-independent behavior across the visible range — reducing intensity while preserving the original spectral shape. Simple, stable, and cost-effective, they are often paired with a double-sided AR coating to lower surface reflection and raise effective transmission. Widely used for imaging brightness control, optical measurement, detector protection, and laboratory intensity adjustment.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBroadband beam attenuation\u003c\/li\u003e\n  \u003cli\u003eLaser power \/ intensity control\u003c\/li\u003e\n  \u003cli\u003eImaging \u0026amp; detector protection\u003c\/li\u003e\n  \u003cli\u003eOptical measurement \u0026amp; illumination control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e Neutral Absorbing Glass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Ø25.4 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–700 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 0.8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194698412186,"sku":"O-NDF-25.4-2.0-BL519","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664698-nd-main.png?v=1780478383"},{"product_id":"absorptive-nd-filter-25-4mm-od1-0","title":"Absorptive ND Filter, Ø25.4 mm, OD 1.0","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAbsorptive neutral density filters use neutral absorbing glass (NG-series colored glass) as the substrate, achieving uniform attenuation through broadband bulk absorption with nearly wavelength-independent behavior across the visible range — reducing intensity while preserving the original spectral shape. Simple, stable, and cost-effective, they are often paired with a double-sided AR coating to lower surface reflection and raise effective transmission. Widely used for imaging brightness control, optical measurement, detector protection, and laboratory intensity adjustment.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBroadband beam attenuation\u003c\/li\u003e\n  \u003cli\u003eLaser power \/ intensity control\u003c\/li\u003e\n  \u003cli\u003eImaging \u0026amp; detector protection\u003c\/li\u003e\n  \u003cli\u003eOptical measurement \u0026amp; illumination control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e Neutral Absorbing Glass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Ø25.4 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–700 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 1.0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194698444954,"sku":"O-NDF-25.4-2.0-BL520","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664699-nd-main.png?v=1780478391"},{"product_id":"absorptive-nd-filter-25-4mm-od2-0","title":"Absorptive ND Filter, Ø25.4 mm, OD 2.0","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAbsorptive neutral density filters use neutral absorbing glass (NG-series colored glass) as the substrate, achieving uniform attenuation through broadband bulk absorption with nearly wavelength-independent behavior across the visible range — reducing intensity while preserving the original spectral shape. 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If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194699067546,"sku":"O-NDF-25.4-2.0-BL521","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664700-nd-main.png?v=1780478399"},{"product_id":"absorptive-nd-filter-50x50mm-od0-2","title":"Absorptive ND Filter, 50.0 × 50.0 mm, OD 0.2","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAbsorptive neutral density filters use neutral absorbing glass (NG-series colored glass) as the substrate, achieving uniform attenuation through broadband bulk absorption with nearly wavelength-independent behavior across the visible range — reducing intensity while preserving the original spectral shape. Simple, stable, and cost-effective, they are often paired with a double-sided AR coating to lower surface reflection and raise effective transmission. 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If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194699133082,"sku":"O-NDF-50.0x50.0-2.0-BL522","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664701-nd-main.png?v=1780478407"},{"product_id":"absorptive-nd-filter-50x50mm-od0-4","title":"Absorptive ND Filter, 50.0 × 50.0 mm, OD 0.4","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAbsorptive neutral density filters use neutral absorbing glass (NG-series colored glass) as the substrate, achieving uniform attenuation through broadband bulk absorption with nearly wavelength-independent behavior across the visible range — reducing intensity while preserving the original spectral shape. 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If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194699231386,"sku":"O-NDF-50.0x50.0-2.0-BL523","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664702-nd-main.png?v=1780478424"},{"product_id":"absorptive-nd-filter-50x50mm-od0-5","title":"Absorptive ND Filter, 50.0 × 50.0 mm, OD 0.5","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAbsorptive neutral density filters use neutral absorbing glass (NG-series colored glass) as the substrate, achieving uniform attenuation through broadband bulk absorption with nearly wavelength-independent behavior across the visible range — reducing intensity while preserving the original spectral shape. 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If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194700837018,"sku":"O-NDF-50.0x50.0-2.0-BL526","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664705-nd-main.png?v=1780478461"},{"product_id":"absorptive-nd-filter-50x50mm-od2-0","title":"Absorptive ND Filter, 50.0 × 50.0 mm, OD 2.0","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAbsorptive neutral density filters use neutral absorbing glass (NG-series colored glass) as the substrate, achieving uniform attenuation through broadband bulk absorption with nearly wavelength-independent behavior across the visible range — reducing intensity while preserving the original spectral shape. Simple, stable, and cost-effective, they are often paired with a double-sided AR coating to lower surface reflection and raise effective transmission. Widely used for imaging brightness control, optical measurement, detector protection, and laboratory intensity adjustment.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBroadband beam attenuation\u003c\/li\u003e\n  \u003cli\u003eLaser power \/ intensity control\u003c\/li\u003e\n  \u003cli\u003eImaging \u0026amp; detector protection\u003c\/li\u003e\n  \u003cli\u003eOptical measurement \u0026amp; illumination control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e Neutral Absorbing Glass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 50.0 × 50.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–700 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 2.0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194701688986,"sku":"O-NDF-50.0x50.0-2.0-BL527","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664706-nd-main.png?v=1780478475"},{"product_id":"absorptive-nd-filter-50x50mm-od3-0","title":"Absorptive ND Filter, 50.0 × 50.0 mm, OD 3.0","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAbsorptive neutral density filters use neutral absorbing glass (NG-series colored glass) as the substrate, achieving uniform attenuation through broadband bulk absorption with nearly wavelength-independent behavior across the visible range — reducing intensity while preserving the original spectral shape. Simple, stable, and cost-effective, they are often paired with a double-sided AR coating to lower surface reflection and raise effective transmission. Widely used for imaging brightness control, optical measurement, detector protection, and laboratory intensity adjustment.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBroadband beam attenuation\u003c\/li\u003e\n  \u003cli\u003eLaser power \/ intensity control\u003c\/li\u003e\n  \u003cli\u003eImaging \u0026amp; detector protection\u003c\/li\u003e\n  \u003cli\u003eOptical measurement \u0026amp; illumination control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e Neutral Absorbing Glass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 50.0 × 50.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–700 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 3.0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194702082202,"sku":"O-NDF-50.0x50.0-2.0-BL528","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664707-nd-main.png?v=1780478505"},{"product_id":"h-k9l-reflective-nd-filter-50x50mm-od0-1","title":"H-K9L Reflective ND Filter, 50.0 × 50.0 mm, OD 0.1","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eReflective neutral density filters use high-quality K9 (BK7-equivalent) optical glass coated with a precisely controlled metallic reflective film (e.g. protected silver or aluminum). Attenuation is achieved primarily by reflection rather than bulk absorption, so absorbed energy is minimal — greatly reducing heating and thermal-lensing and yielding a higher laser-induced damage threshold. This makes them especially suitable for CW, high-power, and ultrafast laser systems. The broadband metallic coating (400–1100 nm) provides flat spectral attenuation across the visible to near-infrared.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCW \u0026amp; high-power laser attenuation\u003c\/li\u003e\n  \u003cli\u003eUltrafast laser power balancing\u003c\/li\u003e\n  \u003cli\u003eEnergy calibration \u0026amp; beam sampling\u003c\/li\u003e\n  \u003cli\u003eDetector protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e H-K9L (BK7-equivalent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Metallic Coating (HR@400-1100 nm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 50.0 × 50.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–1100 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 0.1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194704081050,"sku":"O-NDF-50.0x50.0-2.0-BL529","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664708-nd-main.png?v=1780478513"},{"product_id":"h-k9l-reflective-nd-filter-50x50mm-od0-2","title":"H-K9L Reflective ND Filter, 50.0 × 50.0 mm, OD 0.2","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eReflective neutral density filters use high-quality K9 (BK7-equivalent) optical glass coated with a precisely controlled metallic reflective film (e.g. protected silver or aluminum). Attenuation is achieved primarily by reflection rather than bulk absorption, so absorbed energy is minimal — greatly reducing heating and thermal-lensing and yielding a higher laser-induced damage threshold. This makes them especially suitable for CW, high-power, and ultrafast laser systems. The broadband metallic coating (400–1100 nm) provides flat spectral attenuation across the visible to near-infrared.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCW \u0026amp; high-power laser attenuation\u003c\/li\u003e\n  \u003cli\u003eUltrafast laser power balancing\u003c\/li\u003e\n  \u003cli\u003eEnergy calibration \u0026amp; beam sampling\u003c\/li\u003e\n  \u003cli\u003eDetector protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e H-K9L (BK7-equivalent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Metallic Coating (HR@400-1100 nm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 50.0 × 50.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–1100 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 0.2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194704113818,"sku":"O-NDF-50.0x50.0-2.0-BL530","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664709-nd-main.png?v=1780478524"},{"product_id":"h-k9l-reflective-nd-filter-50x50mm-od0-3","title":"H-K9L Reflective ND Filter, 50.0 × 50.0 mm, OD 0.3","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eReflective neutral density filters use high-quality K9 (BK7-equivalent) optical glass coated with a precisely controlled metallic reflective film (e.g. protected silver or aluminum). Attenuation is achieved primarily by reflection rather than bulk absorption, so absorbed energy is minimal — greatly reducing heating and thermal-lensing and yielding a higher laser-induced damage threshold. This makes them especially suitable for CW, high-power, and ultrafast laser systems. The broadband metallic coating (400–1100 nm) provides flat spectral attenuation across the visible to near-infrared.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCW \u0026amp; high-power laser attenuation\u003c\/li\u003e\n  \u003cli\u003eUltrafast laser power balancing\u003c\/li\u003e\n  \u003cli\u003eEnergy calibration \u0026amp; beam sampling\u003c\/li\u003e\n  \u003cli\u003eDetector protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e H-K9L (BK7-equivalent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Metallic Coating (HR@400-1100 nm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 50.0 × 50.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–1100 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 0.3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194704507034,"sku":"O-NDF-50.0x50.0-2.0-BL531","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664710-nd-main.png?v=1780478533"},{"product_id":"h-k9l-reflective-nd-filter-50x50mm-od0-4","title":"H-K9L Reflective ND Filter, 50.0 × 50.0 mm, OD 0.4","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eReflective neutral density filters use high-quality K9 (BK7-equivalent) optical glass coated with a precisely controlled metallic reflective film (e.g. protected silver or aluminum). Attenuation is achieved primarily by reflection rather than bulk absorption, so absorbed energy is minimal — greatly reducing heating and thermal-lensing and yielding a higher laser-induced damage threshold. This makes them especially suitable for CW, high-power, and ultrafast laser systems. The broadband metallic coating (400–1100 nm) provides flat spectral attenuation across the visible to near-infrared.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCW \u0026amp; high-power laser attenuation\u003c\/li\u003e\n  \u003cli\u003eUltrafast laser power balancing\u003c\/li\u003e\n  \u003cli\u003eEnergy calibration \u0026amp; beam sampling\u003c\/li\u003e\n  \u003cli\u003eDetector protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e H-K9L (BK7-equivalent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Metallic Coating (HR@400-1100 nm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 50.0 × 50.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–1100 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 0.4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194704867482,"sku":"O-NDF-50.0x50.0-2.0-BL532","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664711-nd-main.png?v=1780478549"},{"product_id":"h-k9l-reflective-nd-filter-50x50mm-od0-5","title":"H-K9L Reflective ND Filter, 50.0 × 50.0 mm, OD 0.5","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eReflective neutral density filters use high-quality K9 (BK7-equivalent) optical glass coated with a precisely controlled metallic reflective film (e.g. protected silver or aluminum). Attenuation is achieved primarily by reflection rather than bulk absorption, so absorbed energy is minimal — greatly reducing heating and thermal-lensing and yielding a higher laser-induced damage threshold. This makes them especially suitable for CW, high-power, and ultrafast laser systems. The broadband metallic coating (400–1100 nm) provides flat spectral attenuation across the visible to near-infrared.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCW \u0026amp; high-power laser attenuation\u003c\/li\u003e\n  \u003cli\u003eUltrafast laser power balancing\u003c\/li\u003e\n  \u003cli\u003eEnergy calibration \u0026amp; beam sampling\u003c\/li\u003e\n  \u003cli\u003eDetector protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e H-K9L (BK7-equivalent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Metallic Coating (HR@400-1100 nm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 50.0 × 50.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–1100 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 0.5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194704900250,"sku":"O-NDF-50.0x50.0-2.0-BL533","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664712-nd-main.png?v=1780478562"},{"product_id":"h-k9l-reflective-nd-filter-50x50mm-od0-8","title":"H-K9L Reflective ND Filter, 50.0 × 50.0 mm, OD 0.8","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eReflective neutral density filters use high-quality K9 (BK7-equivalent) optical glass coated with a precisely controlled metallic reflective film (e.g. protected silver or aluminum). Attenuation is achieved primarily by reflection rather than bulk absorption, so absorbed energy is minimal — greatly reducing heating and thermal-lensing and yielding a higher laser-induced damage threshold. This makes them especially suitable for CW, high-power, and ultrafast laser systems. The broadband metallic coating (400–1100 nm) provides flat spectral attenuation across the visible to near-infrared.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCW \u0026amp; high-power laser attenuation\u003c\/li\u003e\n  \u003cli\u003eUltrafast laser power balancing\u003c\/li\u003e\n  \u003cli\u003eEnergy calibration \u0026amp; beam sampling\u003c\/li\u003e\n  \u003cli\u003eDetector protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e H-K9L (BK7-equivalent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Metallic Coating (HR@400-1100 nm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 50.0 × 50.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–1100 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 0.8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194704933018,"sku":"O-NDF-50.0x50.0-2.0-BL534","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664713-nd-main.png?v=1780478576"},{"product_id":"h-k9l-reflective-nd-filter-50x50mm-od1-0","title":"H-K9L Reflective ND Filter, 50.0 × 50.0 mm, OD 1.0","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eReflective neutral density filters use high-quality K9 (BK7-equivalent) optical glass coated with a precisely controlled metallic reflective film (e.g. protected silver or aluminum). Attenuation is achieved primarily by reflection rather than bulk absorption, so absorbed energy is minimal — greatly reducing heating and thermal-lensing and yielding a higher laser-induced damage threshold. This makes them especially suitable for CW, high-power, and ultrafast laser systems. The broadband metallic coating (400–1100 nm) provides flat spectral attenuation across the visible to near-infrared.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCW \u0026amp; high-power laser attenuation\u003c\/li\u003e\n  \u003cli\u003eUltrafast laser power balancing\u003c\/li\u003e\n  \u003cli\u003eEnergy calibration \u0026amp; beam sampling\u003c\/li\u003e\n  \u003cli\u003eDetector protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e H-K9L (BK7-equivalent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Metallic Coating (HR@400-1100 nm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 50.0 × 50.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–1100 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 1.0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194704998554,"sku":"O-NDF-50.0x50.0-2.0-BL535","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664714-nd-main.png?v=1780478600"},{"product_id":"h-k9l-reflective-nd-filter-50x50mm-od2-0","title":"H-K9L Reflective ND Filter, 50.0 × 50.0 mm, OD 2.0","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eReflective neutral density filters use high-quality K9 (BK7-equivalent) optical glass coated with a precisely controlled metallic reflective film (e.g. protected silver or aluminum). Attenuation is achieved primarily by reflection rather than bulk absorption, so absorbed energy is minimal — greatly reducing heating and thermal-lensing and yielding a higher laser-induced damage threshold. This makes them especially suitable for CW, high-power, and ultrafast laser systems. The broadband metallic coating (400–1100 nm) provides flat spectral attenuation across the visible to near-infrared.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCW \u0026amp; high-power laser attenuation\u003c\/li\u003e\n  \u003cli\u003eUltrafast laser power balancing\u003c\/li\u003e\n  \u003cli\u003eEnergy calibration \u0026amp; beam sampling\u003c\/li\u003e\n  \u003cli\u003eDetector protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e H-K9L (BK7-equivalent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Metallic Coating (HR@400-1100 nm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 50.0 × 50.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–1100 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 2.0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194705031322,"sku":"O-NDF-50.0x50.0-2.0-BL536","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664715-nd-main.png?v=1780478609"},{"product_id":"h-k9l-reflective-nd-filter-50x50mm-od3-0","title":"H-K9L Reflective ND Filter, 50.0 × 50.0 mm, OD 3.0","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eReflective neutral density filters use high-quality K9 (BK7-equivalent) optical glass coated with a precisely controlled metallic reflective film (e.g. protected silver or aluminum). Attenuation is achieved primarily by reflection rather than bulk absorption, so absorbed energy is minimal — greatly reducing heating and thermal-lensing and yielding a higher laser-induced damage threshold. This makes them especially suitable for CW, high-power, and ultrafast laser systems. The broadband metallic coating (400–1100 nm) provides flat spectral attenuation across the visible to near-infrared.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCW \u0026amp; high-power laser attenuation\u003c\/li\u003e\n  \u003cli\u003eUltrafast laser power balancing\u003c\/li\u003e\n  \u003cli\u003eEnergy calibration \u0026amp; beam sampling\u003c\/li\u003e\n  \u003cli\u003eDetector protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eConstruction \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e H-K9L (BK7-equivalent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Metallic Coating (HR@400-1100 nm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 50.0 × 50.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 2.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpectral range:\u003c\/strong\u003e 400–1100 nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOD:\u003c\/strong\u003e 3.0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear aperture:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParallelism:\u003c\/strong\u003e 5 arcmin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface quality:\u003c\/strong\u003e 80-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface flatness:\u003c\/strong\u003e λ\/2 @ 633 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eFor optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194705064090,"sku":"O-NDF-50.0x50.0-2.0-BL537","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664716-nd-main.png?v=1780478635"},{"product_id":"h-k9l-reflective-nd-filter-50x50mm-od4-0","title":"H-K9L Reflective ND Filter, 50.0 × 50.0 mm, OD 4.0","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eReflective neutral density filters use high-quality K9 (BK7-equivalent) optical glass coated with a precisely controlled metallic reflective film (e.g. protected silver or aluminum). Attenuation is achieved primarily by reflection rather than bulk absorption, so absorbed energy is minimal — greatly reducing heating and thermal-lensing and yielding a higher laser-induced damage threshold. This makes them especially suitable for CW, high-power, and ultrafast laser systems. 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If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the optic.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":48194705096858,"sku":"O-NDF-50.0x50.0-2.0-BL538","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/664717-nd-main.png?v=1780478647"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/collections\/664693-nd-main.png?v=1780534981","url":"https:\/\/waveqvanta.com\/collections\/wq-uo-nd-filters.oembed?page=2","provider":"WaveQuanta","version":"1.0","type":"link"}