{"product_id":"t-gp2012l-vph-transmission-grating-840-nm-dwl-1200-linesmm-303-aoi-o2","title":"T-GP2012L - VPH Transmission Grating, 840 nm DWL, 1200 Lines\/mm, 30.3° AOI, Ø2\"","description":"\u003cp\u003eT-GP2012L - VPH Transmission Grating, 840 nm DWL, 1200 Lines\/mm, 30.3° AOI, Ø2\"\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1026\/4509\/files\/TTN259722-E0W.pdf?v=1692383897\"\u003e\u003cstrong\u003eProduct Drawing\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesign Wavelength (DWL) and Spatial Frequency Options:\n\u003cul\u003e\n\u003cli\u003e840 nm: 1200 Lines\/mm\u003c\/li\u003e\n\u003cli\u003e900 nm: 1000 Lines\/mm\u003c\/li\u003e\n\u003cli\u003e930 nm: 900, 1200, or 1500 Lines\/mm\u003c\/li\u003e\n\u003cli\u003e1030 nm: 800 or 1800 Lines\/mm\u003c\/li\u003e\n\u003cli\u003e1300 nm: 800 Lines\/mm\u003c\/li\u003e\n\u003cli\u003eDesign Wavelength \u003cspan data-mce-fragment=\"1\"\u003e840 nm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eSpatial \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eFrequency 1200 lines\/mm \u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAngle of Incidence at the Design Wavelength \u003cspan data-mce-fragment=\"1\"\u003e30.3°\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eDiffraction Efficiency \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003e730 nm: S-Pol \u0026gt; 50%; P-Pol \u0026gt; 60%\u003cbr\u003e840 nm: S-Pol \u0026gt; 80%; P-Pol \u0026gt; 80%\u003cbr\u003e950 nm: S-Pol \u0026gt; 60%; P-Pol \u0026gt; 50%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eBroadband Antireflection Coating Performance at the Specified AOI (Per Surface) \u003cspan data-mce-fragment=\"1\"\u003e650 - 1010 nm \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eR\u003c\/span\u003e\u003csub data-mce-fragment=\"1\"\u003eavg\u003c\/sub\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u0026lt; 1.0%\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1026\/4509\/products\/N-BK7_SF2_FiberPort_Transmission_G1-780.gif?v=1676327455\"\u003e\u003cstrong\u003eCover Plate Substrate\u003c\/strong\u003e\u003c\/a\u003e or Equivalent\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions Ø50.8 mm x 6.0 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh First-Order Diffraction Peak Efficiency (See Tables Below)\u003c\/li\u003e\n\u003cli\u003eUniform Performance Over Broad Bandwidths (See Diffraction Efficiency Graphs Below)\u003c\/li\u003e\n\u003cli\u003eExtremely Low Scatter Between Orders (No Ghosting)\u003c\/li\u003e\n\u003cli\u003eDichromated Gelatin (DCG) Film Between Two Glass Substrates\u003c\/li\u003e\n\u003cli\u003eIdeal for Spectroscopy, Optical Coherence Tomography (OCT), and Laser Pulse Compression\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable cellspacing=\"0\" class=\"RedSpecTable\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\" class=\"leftBorder\"\u003eT-GP2012L Specifications\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"leftBorder\"\u003eDesign Wavelength\u003c\/td\u003e\n\u003ctd\u003e840 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"evenRow\"\u003e\n\u003ctd class=\"leftBorder\"\u003eSpatial Frequency\u003c\/td\u003e\n\u003ctd\u003e1200 ± 2 lines\/mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"leftBorder\"\u003eLine Orientation\u003c\/td\u003e\n\u003ctd\u003e±1° Off of Engraved Line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"evenRow\"\u003e\n\u003ctd class=\"leftBorder\"\u003eAngle of Incidence (AOI)\u003csup\u003ea\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003ctd\u003e30.3° ± 1°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"leftBorder\"\u003eDiffraction Efficiency\u003csup\u003eb\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003ctd\u003e730 nm: S-Pol \u0026gt; 50%; P-Pol \u0026gt; 60%\u003cbr\u003e840 nm: S-Pol \u0026gt; 80%; P-Pol \u0026gt; 80%\u003cbr\u003e950 nm: S-Pol \u0026gt; 60%; P-Pol \u0026gt; 50%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"evenRow\"\u003e\n\u003ctd class=\"leftBorder\"\u003eBBAR Coating\u003csup\u003ec\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003ctd\u003e650 - 1010 nm\u003cbr\u003eR\u003csub\u003eavg\u003c\/sub\u003e \u0026lt; 1.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"leftBorder\"\u003eTransmitted Wavefront Error (RMS)\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;λ\/4 at 632.8 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"evenRow\"\u003e\n\u003ctd class=\"leftBorder\"\u003eGrating Film\u003c\/td\u003e\n\u003ctd\u003eDichromated Gelatin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"leftBorder\"\u003eCover-Plate Substrate\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1026\/4509\/products\/N-BK7_SF2_FiberPort_Transmission_G1-780.gif?v=1676327455\"\u003e\u003cstrong\u003e N-BK7\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor Equivalent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"evenRow\"\u003e\n\u003ctd class=\"leftBorder\"\u003eSurface Quality\u003c\/td\u003e\n\u003ctd\u003e40-20 Scratch Dig\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"leftBorder\"\u003eDimensions (D x T)\u003c\/td\u003e\n\u003ctd\u003eØ50.8 mm x 6.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"evenRow\"\u003e\n\u003ctd class=\"leftBorder\"\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;Ø46 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"leftBorder\"\u003eDiameter Tolerance\u003c\/td\u003e\n\u003ctd\u003e+0.0 mm \/ -0.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"evenRow\"\u003e\n\u003ctd class=\"leftBorder\"\u003eThickness Tolerance\u003c\/td\u003e\n\u003ctd\u003e±0.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Fosco Connect","offers":[{"title":"Default Title","offer_id":49083722596608,"sku":"T-GP2012L","price":2252.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/TTN259722-xl.jpg?v=1785204099","url":"https:\/\/alotechparts.com\/products\/t-gp2012l-vph-transmission-grating-840-nm-dwl-1200-linesmm-303-aoi-o2","provider":"Alo Tech Solutions","version":"1.0","type":"link"}