JGS1 \u2013 Far-Ultraviolet Optical Fused Silica High hydroxyl content (~2000 ppm)<\/p>\n<\/li>\n Exceptional UV transmittance, exceeding 90% at 185 nm<\/p>\n<\/li>\n Suitable for 185\u20132500 nm wavelength range<\/p>\n<\/li>\n Applications: DUV lithography lenses, space telescope mirrors, UV laser collimators<\/p>\n<\/li>\n<\/ul>\n JGS2 \u2013 Ultraviolet Optical Fused Silica<\/strong><\/p>\n Manufactured from crystalline raw materials via gas refining<\/p>\n<\/li>\n Metal impurities at tens of ppm, hydroxyl content 100\u2013200 ppm<\/p>\n<\/li>\n Transmission range 220\u20132500 nm<\/p>\n<\/li>\n Applications: Consumer optics such as camera lenses, projector prisms, microscope objectives<\/p>\n<\/li>\n<\/ul>\n JGS3 \u2013 Infrared Optical Fused Silica<\/strong><\/p>\n Produced from high-purity quartz sand or crystalline materials via vacuum electrical melting<\/p>\n<\/li>\n Minimal hydroxyl content and negligible bubbles<\/p>\n<\/li>\n Infrared transmittance >85%, suitable for 260\u20133500 nm wavelength range<\/p>\n<\/li>\n Applications: IR thermal imaging windows, CO\u2082 laser focusing mirrors, missile infrared seeker domes<\/p>\n<\/li>\n<\/ul>\n C\u00e1c t\u00ednh n\u0103ng ch\u00ednh \u0110\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t<\/strong>: Softening point 1683\u00b0C, annealing point 1215\u00b0C, strain point 1120\u00b0C<\/p>\n<\/li>\n Precision Processing<\/strong>: Multi-stage gradient annealing reduces internal stress; magnetorheological polishing achieves Ra <0.5 nm<\/p>\n<\/li>\n C\u00e1c l\u1ef1a ch\u1ecdn l\u1edbp ph\u1ee7<\/strong>: Anti-reflective (AR), high-reflection (HR), and corrosion-resistant coatings<\/p>\n<\/li>\n Kh\u1ea3 n\u0103ng ch\u1ecbu h\u00f3a ch\u1ea5t<\/strong>: Highly resistant to water and most acids (except HF)<\/p>\n<\/li>\n Mechanical Properties<\/strong>: Mohs hardness 5.5\u20136.5, Young\u2019s modulus 7.2\u00d710\u00b9\u2070 Pa<\/p>\n<\/li>\n<\/ul>\n High-End Optical Systems<\/strong>: DUV lithography lenses, UV collimators, space telescope mirrors<\/p>\n<\/li>\n S\u1ea3n xu\u1ea5t ch\u1ea5t b\u00e1n d\u1eabn<\/strong>: Photomask substrates, wafer processing carriers, high-temperature diffusion furnace components<\/p>\n<\/li>\n Laser Technology<\/strong>: Nd:YAG laser mirrors, CO\u2082 laser transmission components<\/p>\n<\/li>\n H\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5<\/strong>: Spacecraft optical windows, hypersonic missile IR seeker domes<\/p>\n<\/li>\n Special Lighting<\/strong>: High-purity UV lamps, mercury lamp housings<\/p>\n<\/li>\n Nghi\u00ean c\u1ee9u khoa h\u1ecdc<\/strong>: Synchrotron beamline windows, Cherenkov particle detectors<\/p>\n<\/li>\n<\/ol>\n Standard Specifications<\/strong><\/p>\n C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/strong><\/p>\n What are the differences between JGS1, JGS2, and JGS3?<\/strong> Which grade is suitable for UV laser applications?<\/strong> These high-purity quartz glass plates are precision-engineered from ultra-pure silicon dioxide (SiO\u2082 \u2265 99.99%) using advanced melting and rapid cooling techniques. The resulting fused silica exhibits exceptional optical clarity, thermal stability, and chemical resistance. Based on purity and optical performance, these plates are classified into three grades: JGS1, JGS2, and JGS3.<\/p>","protected":false},"featured_media":2155,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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\u1ee8ng d\u1ee5ng<\/strong><\/p>\n\n
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\n \nB\u1ea5t \u0111\u1ed9ng s\u1ea3n<\/th>\n Gi\u00e1 tr\u1ecb<\/th>\n<\/tr>\n<\/thead>\n \n M\u1eadt \u0111\u1ed9<\/td>\n 2.20 g\/cm\u00b3<\/td>\n<\/tr>\n \n Abbe Number<\/td>\n 67.6<\/td>\n<\/tr>\n \n Refractive Index (588 nm)<\/td>\n 1.4586<\/td>\n<\/tr>\n \n \u0110\u1ed9 c\u1ee9ng<\/td>\n 5.5\u20136.5 Mohs<\/td>\n<\/tr>\n \n Design Tensile Strength<\/td>\n 4.8\u00d710\u2077 Pa<\/td>\n<\/tr>\n \n Design Compressive Strength<\/td>\n >1.1\u00d710\u2079 Pa<\/td>\n<\/tr>\n \n H\u1ec7 s\u1ed1 \u0111\u00e0n h\u1ed3i c\u1ee7a Young<\/td>\n 7.2\u00d710\u00b9\u2070 Pa<\/td>\n<\/tr>\n \n Poisson\u2019s Ratio<\/td>\n 0.17<\/td>\n<\/tr>\n \n H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t<\/td>\n 5.5\u00d710\u207b\u2077 cm\/cm\u00b7\u2103<\/td>\n<\/tr>\n \n \u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td>\n 1.4 W\/m\u00b7\u2103<\/td>\n<\/tr>\n \n \u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td>\n 1683\u2103<\/td>\n<\/tr>\n \n \u0110i\u1ec3m \u1ee7<\/td>\n 1215\u2103<\/td>\n<\/tr>\n \n \u0110i\u1ec3m bi\u1ebfn d\u1ea1ng<\/td>\n 1120\u2103<\/td>\n<\/tr>\n \n Electrical Resistivity<\/td>\n 7\u00d710\u2077 ohm\u00b7cm (350\u2103)<\/td>\n<\/tr>\n \n T\u00ednh \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc<\/td>\n Highly resistant to water and acids except HF<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n \n
JGS1 offers >90% UV transmission at 185 nm with 2000 ppm OH, JGS2 provides 220\u20132500 nm transmission with 100\u2013200 ppm OH, and JGS3 delivers >85% IR transmission with near-zero OH content.<\/p>\n<\/li>\n
JGS1 is ideal for UV lasers due to its >90% transmittance at 185 nm and high laser damage threshold of 15 J\/cm\u00b2.<\/p>\n<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"