{"product_id":"raman-filters-ret792lp","title":"Raman long-pass filter RET792LP","description":"\u003ch2\u003eRaman long-pass filter — Model RET792LP\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eØØ25.0 mm.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOuter diameter 25.0 mm, with mechanical retaining ring\u003c\/li\u003e\n\u003cli\u003eHigh environmental resistance, long service life\u003c\/li\u003e\n\u003cli\u003eFWHM: 3 nm, 4 nm, 5 nm, 6 nm, 7 nm\u003c\/li\u003e\n\u003cli\u003eCenter wavelength: 266 nm-1064 nm\u003c\/li\u003e\n\u003cli\u003eOptical density in stop band: OD5, OD6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK offers CHROMA Raman Filters with a diameter of 25 mm and mechanical retaining rings. Raman Filters are bandpass filters with a bandwidth of less than 10 nm, used in instruments such as Raman spectrometers. Raman filters fully transmit only the central wavelength, with optical densities in the stop band reaching as high as OD5 and OD6. LBTEK's CHROMA Raman filters utilize a magnetron sputtering coating process, resulting in high transmittance, a high cutoff depth, and a high steepness. In Raman spectroscopy applications, they effectively reduce stray light interference, improve spectral signal quality, and enhance detection sensitivity and accuracy.\u003c\/p\u003e\n\u003ch3\u003eRaman long-pass filter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLongpass Filter\u003c\/li\u003e\n\u003cli\u003eCut-On Wavelength: 270 nm-1072 nm\u003c\/li\u003e\n\u003cli\u003eOuter Diameter 25.0 mm, with Mechanical Retaining Ring\u003c\/li\u003e\n\u003cli\u003eAngle of Incidence: 0°\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Raman long-pass filters include two types: low wavenumber Raman long-pass filters and conventional Raman long-pass filters. They are optical filters that allow light with wavelengths longer than a specific wavelength to pass through. They exhibit high transmittance (Tavg \u0026gt; 90%) for light longer than the starting (cut-off) wavelength and high blocking depth (ODavg \u0026gt; 6) for light shorter than the starting (cut-off) wavelength. The filters are pre-installed in Ø25.0 mm black anodized aluminum rings, with the light propagation direction marked by an arrow on the housing for easy installation and use. Raman long-pass filters are recommended for use at an incident angle of 0°. When used at incident angles deviating from the design angle, the starting (cut-off) wavelength may shift.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47519178784922,"sku":"RET792LP","price":1020.08,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/E6_8B_89_E6_9B_BC_E6_BB_A4_E5_85_89_E7_89_87-FnyvO2Eq16Q4XfS_-V7u5D51kCUu-FnyvO2Eq16Q4XfS_-V7u5D51kCUu_f58c1b13-393e-450d-a81e-d605427d6852.jpg?v=1772682291","url":"https:\/\/waveqvanta.com\/products\/raman-filters-ret792lp","provider":"WaveQuanta","version":"1.0","type":"link"}