{"id":351,"date":"2025-08-27T20:11:47","date_gmt":"2025-08-27T11:11:47","guid":{"rendered":"https:\/\/www.hulinks.co.jp\/en\/?page_id=351"},"modified":"2025-10-07T17:38:03","modified_gmt":"2025-10-07T08:38:03","slug":"metal-bandpass","status":"publish","type":"page","link":"https:\/\/www.hulinks.co.jp\/en\/tfcalc\/examples\/list-of-coating-design\/metal-bandpass\/","title":{"rendered":"Metal-Dielectric Bandpass Filter"},"content":{"rendered":"\n<h1 class=\"wp-block-heading is-style-nostyle\">List of coating design exapmles<\/h1>\n\n\n\n<h2 class=\"wp-block-heading is-style-bottomline\">Metal-Dielectric Bandpass Filter<\/h2>\n\n\n\n<p>This filter transmits a fairly narrow band of wavelengths centered at 870 nm.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"441\" height=\"207\" src=\"https:\/\/www.hulinks.co.jp\/en\/wp-content\/uploads\/sites\/2\/software\/tfcalc\/tf_metal2_1.gif\" alt=\"\" class=\"wp-image-352\" \/><\/figure><\/div>\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>This design is for normal incidence on a BK7 (ordinary) glass substrate. Three materials are used: Au, SiO2, and TiO2. Starting with a thin, one-layer design, TFCalc\u2019s needle\/tunneling method produced a sequence of designs of increasing complexity. The design (whose performance is shown above) consists of 8 layers. Designs with as few as 4 layers are possible. However, those designs have lower transmittance and a wider pass band.<br>Here is the design, with the first layer closest to the substrate and thickness given in nm:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    AU        23.33\n    SIO2     121.94\n    TIO2      94.24\n    SIO2     302.57\n    TIO2      94.24\n    SIO2     127.87\n    AU        24.97\n    TIO2     101.94<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>List of coating design exapmles Metal-Dielectric Bandpass Filter This filter transmits a fairly narrow band of wavelengths centered at 870 nm. This design is for normal incidence on a BK7 (ordinary) glass substrate. Three materials are used: Au, SiO2, and TiO2. Starting with a thin, one-layer design, TFCalc\u2019s needle\/tunneling method produced a sequence of designs&#8230;<\/p>\n","protected":false},"author":15,"featured_media":0,"parent":258,"menu_order":30,"comment_status":"closed","ping_status":"closed","template":"liquid.php","meta":{"footnotes":""},"tags":[],"class_list":["post-351","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.hulinks.co.jp\/en\/wp-json\/wp\/v2\/pages\/351","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hulinks.co.jp\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.hulinks.co.jp\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.hulinks.co.jp\/en\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hulinks.co.jp\/en\/wp-json\/wp\/v2\/comments?post=351"}],"version-history":[{"count":3,"href":"https:\/\/www.hulinks.co.jp\/en\/wp-json\/wp\/v2\/pages\/351\/revisions"}],"predecessor-version":[{"id":692,"href":"https:\/\/www.hulinks.co.jp\/en\/wp-json\/wp\/v2\/pages\/351\/revisions\/692"}],"up":[{"embeddable":true,"href":"https:\/\/www.hulinks.co.jp\/en\/wp-json\/wp\/v2\/pages\/258"}],"wp:attachment":[{"href":"https:\/\/www.hulinks.co.jp\/en\/wp-json\/wp\/v2\/media?parent=351"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hulinks.co.jp\/en\/wp-json\/wp\/v2\/tags?post=351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}