{"id":37698,"date":"2023-06-09T11:26:22","date_gmt":"2023-06-09T10:26:22","guid":{"rendered":"https:\/\/photonics.laser2000.co.uk\/?p=37698"},"modified":"2023-06-09T11:26:22","modified_gmt":"2023-06-09T10:26:22","slug":"koladeep-spectral-measurement-system-measure-deeper-blocking","status":"publish","type":"post","link":"https:\/\/stagingphotonics.laser2000.co.uk\/?p=37698","title":{"rendered":"KolaDeep\u2122 Spectral Measurement System: Measure Deeper Blocking"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\" id=\"h-industry-leading-metrology\">Industry-leading Metrology<\/h3>\n\n\n\n<p>New fluorescence-based life science and biomedical instrumentation increasingly requires high-performance optical filters with very high blocking (OD) and steep spectral edges that transition between high transmission and high OD. IDEX Health &amp; Science Semrock engineers therefore developed the KolaDeep Spectral Measurement System (SMS), a proprietary award-winning platform for proven measurements of the steepest and deepest spectral features of their optical filters. This system is used in routine production to ensure that instruments made from these filters will deliver their intended performance.<\/p>\n\n\n\n<p>The platform&#8217;s capabilities include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>KolaDeep measures blocking to OD 8-9 across wavelength spans in the UV, visible and NIR ranges, and spectral features to OD 11<\/li>\n\n\n\n<li>KolaDeep resolves edges steeper than 0.2% relative to the edge wavelength from 90% transmission to OD &gt; 7<\/li>\n<\/ul>\n\n\n\n<div style=\"height:22px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/stagingphotonics.laser2000.co.uk\/wp-content\/uploads\/2023\/06\/OD-measured-on-a-custom-pentaband-filter-1024x795.jpg\" alt=\"KolaDeep\u2122 Spectral Measurement System: Measure Deeper Blocking\" class=\"wp-image-37699\" width=\"512\" height=\"398\"\/><\/figure>\n\n\n\n<div style=\"height:22px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>The graph above shows OD measured on a custom pentaband filter. The blocking between passbands is specified to exceed OD 8 to prevent excitation light leakage. Theory and measurement agree to OD &gt; 8, with some blocking reaching from OD &gt; 9 to the noise floor.<\/p>\n\n\n\n<p>Semrock&#8217;s engineering team performed extensive qualification testing on KolaDeep to characterise and confirm the wavelength and photometric accuracy of the system.<\/p>\n\n\n\n<p>The recent white paper \u201cAdvanced Spectral Measurement Systems at IDEX Health &amp; Science Semrock\u201d presents examples and analyses of Semrock filters based on measurements by the KolaDeep SMS; a few are shown here.<\/p>\n\n\n\n<p>The KolaDeep SMS performs well over the UV and NIR spectral range. An example is shown below for the 1064 nm Semrock MaxLine\u00ae laser-line cleanup filter. Measurements (red) confirm the required blocking and agree with the theoretical design (green) to OD &gt; 7. Data (blue) from a superior commercially available system are not accurate beyond OD 3.<\/p>\n\n\n\n<div style=\"height:22px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/stagingphotonics.laser2000.co.uk\/wp-content\/uploads\/2023\/06\/1064-nm-Semrock-MaxLine-laserline-cleanup-filter-measurements-1024x762.jpg\" alt=\"KolaDeep\u2122 Spectral Measurement System\" class=\"wp-image-37701\" width=\"512\" height=\"381\"\/><\/figure>\n\n\n\n<div style=\"height:22px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/stagingphotonics.laser2000.co.uk\/wp-content\/uploads\/2023\/06\/custom-hexa-notch-filter-spectral-performance-1024x802.jpg\" alt=\"KolaDeep\u2122 Spectral Measurement System\" class=\"wp-image-37700\" width=\"512\" height=\"401\"\/><\/figure>\n\n\n\n<div style=\"height:22px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>The graph above shows spectral performance for a custom hexa-notch filter designed to ensure precise blocking of six laser lines. This customer required assurance that each laser line is repeatably blocked at a specific level. The spectra measured with KolaDeep SMS show precise matches to the specifications, even in the UV region. The measured blocking (red) matches theory (green).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-white-paper\">White Paper<\/h3>\n\n\n\n<p>For more detailed information on this topic, download the white paper&nbsp;<a href=\"\/wp-content\/uploads\/2023\/06\/Advanced-Spectral-Measurement-Systems-and-Semrock-Optical-Filters.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Advanced Spectral Measurement Systems and Semrock Optical Filters.<\/strong><\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-get-in-touch\">Get in Touch<\/h3>\n\n\n\n<p>When choosing a partner for your custom optical filters needs, it\u2019s important to have proven data behind specifications.\u00a0Contact Us\u00a0to discover how our partnership with you can provide actual data measurements of your custom optical filters with the KolaDeep\u2122\u00a0Spectral Measurement System.<\/p>\n\n\n\n<div style=\"height:22px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>New fluorescence-based life science and biomedical instrumentation increasingly requires high-performance optical filters with very high blocking (OD) and steep spectral edges that transition between high transmission and high OD.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[17,21],"tags":[],"class_list":["post-37698","post","type-post","status-publish","format-standard","hentry","category-blogs","category-microscopy-blogs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.6 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>KolaDeep\u2122 Spectral Measurement System: Deeper Blocking<\/title>\n<meta name=\"description\" content=\"KolaDeep\u2122 Spectral 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