{"product_id":"mse-pro-dia-4-jgs2-fused-silica-wafer-1000-m-thick-dsp-w-bevel-primary-flat-only","title":"MSE PRO Dia. 4'' JGS2 Fused Silica Wafer, 1000 μm Thick, DSP, w\/ Bevel, Primary Flat Only","description":"\u003ch2\u003eMSE PRO Dia. 4'' JGS2 Fused Silica Wafer, 1000 μm Thick, DSP, w\/ Bevel, Primary Flat Only\u003c\/h2\u003e\n\u003ch3\u003eIntroduction\u003c\/h3\u003e\n\u003cp\u003eFused silica (SiO2) wafers are made from high purity fused silica, ground and polished to optical grade on both sides. The fused silica wafers are suitable for many optical applications because of their excellent optical transmission characteristics. Fused silica also has excellent chemical resistance against a wide variety of solvents, as well as exceptional heat resistance, with high dimensional stability over a wide temperature range thanks to its ultra low thermal expansion coefficient.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 99.915%; height: 333.239px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003cth style=\"width: 29.3307%; height: 19.6023px;\"\u003eSpecification Category\u003c\/th\u003e\n\u003cth style=\"width: 68.1007%; height: 19.6023px;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 29.3307%; height: 19.6023px;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"width: 68.1007%; height: 19.6023px;\"\u003eSiO₂, Fused Silica (Fused Quartz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 29.3307%; height: 19.6023px;\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"width: 68.1007%; height: 19.6023px;\"\u003eJGS2 (Optical Grade Fused Silica)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 29.3307%; height: 19.6023px;\"\u003eWafer Diameter\u003c\/td\u003e\n\u003ctd style=\"width: 68.1007%; height: 19.6023px;\"\u003e100 ± 0.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 29.3307%; height: 19.6023px;\"\u003eWafer Thickness\u003c\/td\u003e\n\u003ctd style=\"width: 68.1007%; height: 19.6023px;\"\u003e1000 ± 25 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 29.3307%; height: 19.6023px;\"\u003ePrimary Flat\u003c\/td\u003e\n\u003ctd style=\"width: 68.1007%; height: 19.6023px;\"\u003e22 ± 2.0 mm (primary flat only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 29.3307%; height: 19.6023px;\"\u003eSurface Polishing\u003c\/td\u003e\n\u003ctd style=\"width: 68.1007%; height: 19.6023px;\"\u003eDouble Side Polished (DSP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 29.3307%; height: 19.6023px;\"\u003eSurface Roughness\u003c\/td\u003e\n\u003ctd style=\"width: 68.1007%; height: 19.6023px;\"\u003eRa \u0026lt; 1 nm on both top and bottom surfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 29.3307%; height: 19.6023px;\"\u003eSurface Finish\u003c\/td\u003e\n\u003ctd style=\"width: 68.1007%; height: 19.6023px;\"\u003eS\/D 40\/20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"width: 29.3307%; height: 39.2045px;\"\u003eTotal Thickness Variation (TTV)\u003c\/td\u003e\n\u003ctd style=\"width: 68.1007%; height: 39.2045px;\"\u003e\u0026lt; 10 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 29.3307%; height: 19.6023px;\"\u003eEdge Type\u003c\/td\u003e\n\u003ctd style=\"width: 68.1007%; height: 19.6023px;\"\u003eBeveled edge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 29.3307%; height: 19.6023px;\"\u003eEdge Processing\u003c\/td\u003e\n\u003ctd style=\"width: 68.1007%; height: 19.6023px;\"\u003eC-shape CNC edge grinding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical Properties of Fused Silica\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDensity: 2.2 g\/cm3\u003c\/li\u003e\n\u003cli\u003eCoefficient of Thermal Expansion: 5.8*10^-7 \/k (298 ~ 573 deg K)\u003c\/li\u003e\n\u003cli\u003eThermochromism: Under constant temperature of 1140 degrees, keep annealing for 30 minutes without discoloration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe JGS2 fused silica is equivalent to Homosil 1, 2 \u0026amp; 3 (Heraeus), Dynasil 1000 \u0026amp; 4000 and 5000 \u0026amp; 6000 (Dynasil)\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e8 '' inch JGS2 Fused Silica wafers are also available. Custom made JGS fused silica wafers and substrates are available upon request. Please \u003ca href=\"https:\/\/www.msesupplies.com\/pages\/contact-us-page\" target=\"_blank\"\u003e\u003cstrong\u003econtact us\u003c\/strong\u003e\u003c\/a\u003e for a quote.\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #000000; background-color: #ffffff;\"\u003e\u003cstrong\u003eCorning Fused Silica 7980\u003c\/strong\u003e High Purity Fused Silica (HPFS) and \u003cstrong\u003eJGS1 Fused Silica\u003c\/strong\u003e wafers, windows and substrates are also available and can be custom made. Please \u003ca href=\"https:\/\/www.msesupplies.com\/pages\/contact-us-page\" target=\"_blank\"\u003e\u003cstrong\u003econtact us\u003c\/strong\u003e\u003c\/a\u003e for a quote.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"MSE Supplies LLC","offers":[{"title":"Default Title","offer_id":41416916959290,"sku":"WA0072052","price":33.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7785\/files\/jgs2_14a2364f-cd9f-4b02-931a-0e01689cc4ab.png?v=1778809136","url":"https:\/\/www.msesupplies.com\/products\/mse-pro-dia-4-jgs2-fused-silica-wafer-1000-m-thick-dsp-w-bevel-primary-flat-only","provider":"MSE Supplies","version":"1.0","type":"link"}