{"product_id":"omni-lambda-di-series-double-monochromators","title":"Omni-λ180Di, 300Di, 500Di Double Monochromators, Stray Light to 1×10⁻⁹","description":"\u003cdiv class=\"wq-pdp__lbtek-desc\"\u003e\n\u003cp\u003e\u003cem\u003eDouble monochromators for very low stray light (subtractive mode) or higher resolution (additive mode).\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThese double monochromators\/spectrographs combine two finely aligned monochromators in one housing. In subtractive dispersion mode they reduce stray light for weak-signal work such as Raman spectroscopy; in additive mode the dispersion is doubled for high-resolution measurements. The Omni-λ300Di and Omni-λ500Di support both modes, while the Omni-λ180Di is a dedicated subtractive double monochromator.\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\u003eOmni-λ300Di and Omni-λ500Di operate in either additive or subtractive dispersion mode\u003c\/li\u003e\n\u003cli\u003eStray light 1 × 10⁻⁹ in subtractive mode and 1 × 10⁻⁷ in additive mode\u003c\/li\u003e\n\u003cli\u003eAdditive mode doubles the focal length to 640 mm (300Di) or 1000 mm (500Di) for 0.04 nm or 0.025 nm resolution\u003c\/li\u003e\n\u003cli\u003eTriple grating turret with 68 × 68 mm gratings spanning UV to NIR\u003c\/li\u003e\n\u003cli\u003eMotorized or manual slits from 0.01 to 3 mm, plus a 24 mm wide motorized middle slit\u003c\/li\u003e\n\u003cli\u003eAll-in-one housing for easy transport and installation; USB 2.0 software control\u003c\/li\u003e\n\u003cli\u003eOmni-λ180Di: subtractive double monochromator with stray light below 10⁻⁹ for UV–VIS–NIR work\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\u003eLow-wavenumber Raman spectroscopy (laser line rejection)\u003c\/li\u003e\n\u003cli\u003eTunable monochromatic light sources with broadband lamps\u003c\/li\u003e\n\u003cli\u003eDetector spectral responsivity calibration, especially in the UV\u003c\/li\u003e\n\u003cli\u003eHigh-resolution spectral measurements\u003c\/li\u003e\n\u003cli\u003eWeak-signal detection requiring low stray light\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wq-pdp__lbtek-tips\"\u003e\n\u003ch3\u003eModel Overview\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable style=\"border-collapse:collapse;width:100%;font-size:13px\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #d0d7e2;padding:4px 6px;background:#f2f5f9;text-align:left\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d7e2;padding:4px 6px;background:#f2f5f9;text-align:left\"\u003eMode\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d7e2;padding:4px 6px;background:#f2f5f9;text-align:left\"\u003eFocal Length (mm)\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d7e2;padding:4px 6px;background:#f2f5f9;text-align:left\"\u003eAperture\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d7e2;padding:4px 6px;background:#f2f5f9;text-align:left\"\u003eResolution (nm)\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d7e2;padding:4px 6px;background:#f2f5f9;text-align:left\"\u003eDispersion (nm\/mm)\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d7e2;padding:4px 6px;background:#f2f5f9;text-align:left\"\u003eStray Light\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d7e2;padding:4px 6px;background:#f2f5f9;text-align:left\"\u003eSize (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eOmni-λ300Di\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eAdditive\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e640\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eF\/4.2\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e0.04\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e1.15\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e1×10⁻⁷\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e825 × 500 × 281\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eOmni-λ300Di\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eSubtractive\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e320\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eF\/4.2\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e0.08\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e2.29\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e1×10⁻⁹\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e825 × 500 × 281\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eOmni-λ500Di\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eAdditive\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e1000\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eF\/6.5\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e0.025\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e0.75\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e1×10⁻⁷\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e825 × 600 × 281\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eOmni-λ500Di\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eSubtractive\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e500\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eF\/6.5\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e0.05\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e1.49\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e1×10⁻⁹\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e825 × 600 × 281\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eOmni-λ180Di\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003eSubtractive\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e–\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e–\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e–\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e–\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003ebelow 10⁻⁹\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d7e2;padding:4px 6px\"\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\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\/omni-lambda-series-monochromators-and-spectrographs\"\u003eOmni-λ Series\u003c\/a\u003e — Monochromators and Spectrographs\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/hipers-320i-aberration-free-imaging-spectrometer\"\u003eHiperS-320i\u003c\/a\u003e — Aberration-Free Imaging Spectrometer\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/omni-ispect-vph-raman-spectrograph\"\u003eOmni-iSpecT\u003c\/a\u003e — VPH Raman Spectrograph\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all: \u003ca href=\"\/collections\/lbtek-light-analysis-monochromators-spectrographs\"\u003eMonochromators \u0026amp; Spectrographs\u003c\/a\u003e · \u003ca href=\"\/collections\/lbtek-light-analysis-spectroscopic-instruments\"\u003eSpectroscopic Instruments\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eModels: Omni-λ180Di, Omni-λ300Di, Omni-λ500Di\u003c\/strong\u003e · Contact WaveQuanta for a quote, configuration advice and lead time.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":68106325393562,"sku":"Omni-λ300Di \/ Omni-λ500Di \/ Omni-λ180Di","price":0.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/wq-omni-lambda-di-series-double-monochromators-1.jpg?v=1794127774","url":"https:\/\/waveqvanta.com\/products\/omni-lambda-di-series-double-monochromators","provider":"WaveQuanta","version":"1.0","type":"link"}