{"id":499,"date":"2026-04-10T14:56:49","date_gmt":"2026-04-10T06:56:49","guid":{"rendered":"https:\/\/www.acatec.com\/?page_id=499"},"modified":"2026-04-14T14:25:22","modified_gmt":"2026-04-14T06:25:22","slug":"fused-silica","status":"publish","type":"page","link":"https:\/\/www.acatec.com\/?page_id=499","title":{"rendered":"Fused Silica"},"content":{"rendered":"\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1976824620\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"984\" height=\"461\" src=\"https:\/\/www.acatec.com\/wp-content\/uploads\/2026\/04\/\u4ea7\u54c1-\u5149\u5b66\u73bb\u7483.png\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.acatec.com\/wp-content\/uploads\/2026\/04\/\u4ea7\u54c1-\u5149\u5b66\u73bb\u7483.png 984w, https:\/\/www.acatec.com\/wp-content\/uploads\/2026\/04\/\u4ea7\u54c1-\u5149\u5b66\u73bb\u7483-800x375.png 800w, https:\/\/www.acatec.com\/wp-content\/uploads\/2026\/04\/\u4ea7\u54c1-\u5149\u5b66\u73bb\u7483-768x360.png 768w\" sizes=\"auto, (max-width: 984px) 100vw, 984px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1976824620 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n  <div id=\"page-header-129144305\" class=\"page-header-wrapper\">\n  <div class=\"page-title dark featured-title\">\n\n    \n    <div class=\"page-title-inner container align-center text-center flex-row-col medium-flex-wrap\" >\n              <div class=\"title-wrapper flex-col\">\n          <h1 class=\"entry-title mb-0\">\n            Fused Silica          <\/h1>\n        <\/div>\n                    <div class=\"title-content flex-col\">\n              <\/div>\n    <\/div>\n\n       <\/div>\n    <\/div>\n  \n\n<div>Thanks to their exceptional properties, fused silica wafers are highly valuable in a wide range of optical applications. These wafers are available in various grades, each tailored for specific uses such as deep\u2011ultraviolet (DUV) and infrared (IR) applications.<\/div>\n<div>\u00a0<\/div>\n<hr \/>\n<h3>UV\u2011Grade Fused Silica<\/h3>\n<div>UV\u2011grade fused silica wafers are made from fully synthetic material with extremely low trace metal content, produced using a synthetic chemical vapor deposition (CVD) process. This method ensures high purity and excellent optical performance. Fused silica features strong thermal resistance and a broad transmission range, with transmittance exceeding 85% at 185\u202fnm and over 90% from 200\u202fnm to 2000\u202fnm. Common brands and grades of UV\u2011grade fused silica include JGS1, Corning 7980, and OHARA SK1300.<\/div>\n<div>\u00a0<\/div>\n<div>ACA offers these wafers in diameters up to 8 inches (200\u202fmm) with a surface roughness (Ra) of less than 0.5\u202fnm, making them ideal for precision optical applications where minimal surface defects are critical.<\/div>\n<div>\u00a0<\/div>\n<hr \/>\n<h3>IR\u2011Grade Fused Silica<\/h3>\n<div>IR\u2011grade fused silica wafers are specifically designed for applications requiring high transmission in the infrared range, typically from 185\u202fnm to 3500\u202fnm. These wafers feature an extremely low hydroxyl (OH) content, generally below 5\u202fppm, which minimizes absorption in the infrared region. Electric fusion is employed to produce IR\u2011grade fused silica, ensuring high purity and consistency. Popular brands and grades of IR\u2011grade fused silica include JGS3, Corning 7979, and OHARA SK1310.<\/div>\n<div>\u00a0<\/div>\n<div>ACA provides these wafers in diameters up to 8 inches (200\u202fmm) with a surface roughness (Ra) of less than 0.5\u202fnm, suitable for high\u2011precision infrared optical components and applications where low OH content is essential to performance.<\/div>\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1807747414\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"428\" height=\"800\" src=\"https:\/\/www.acatec.com\/wp-content\/uploads\/2026\/04\/Fused-Silica-428x800.png\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.acatec.com\/wp-content\/uploads\/2026\/04\/Fused-Silica-428x800.png 428w, https:\/\/www.acatec.com\/wp-content\/uploads\/2026\/04\/Fused-Silica-214x400.png 214w, https:\/\/www.acatec.com\/wp-content\/uploads\/2026\/04\/Fused-Silica-768x1435.png 768w, https:\/\/www.acatec.com\/wp-content\/uploads\/2026\/04\/Fused-Silica-822x1536.png 822w, https:\/\/www.acatec.com\/wp-content\/uploads\/2026\/04\/Fused-Silica-1096x2048.png 1096w, https:\/\/www.acatec.com\/wp-content\/uploads\/2026\/04\/Fused-Silica.png 1266w\" sizes=\"auto, (max-width: 428px) 100vw, 428px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1807747414 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"give_campaign_id":0,"_kadence_starter_templates_imported_post":false,"footnotes":""},"class_list":["post-499","page","type-page","status-publish","hentry"],"campaignId":"","_links":{"self":[{"href":"https:\/\/www.acatec.com\/index.php?rest_route=\/wp\/v2\/pages\/499","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.acatec.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.acatec.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.acatec.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.acatec.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=499"}],"version-history":[{"count":2,"href":"https:\/\/www.acatec.com\/index.php?rest_route=\/wp\/v2\/pages\/499\/revisions"}],"predecessor-version":[{"id":699,"href":"https:\/\/www.acatec.com\/index.php?rest_route=\/wp\/v2\/pages\/499\/revisions\/699"}],"wp:attachment":[{"href":"https:\/\/www.acatec.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=499"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}