{"id":773,"date":"2023-09-21T12:57:03","date_gmt":"2023-09-21T12:57:03","guid":{"rendered":"https:\/\/sites.exeter.ac.uk\/biospec\/?page_id=773"},"modified":"2023-09-21T15:54:43","modified_gmt":"2023-09-21T15:54:43","slug":"deep-raman-spectroscopy","status":"publish","type":"page","link":"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/","title":{"rendered":"Deep Raman Spectroscopy"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"425\" height=\"425\" src=\"https:\/\/sites.exeter.ac.uk\/biospec\/wp-content\/uploads\/sites\/313\/2022\/03\/deepraman3.jpg\" alt=\"\" class=\"wp-image-549\" srcset=\"https:\/\/sites.exeter.ac.uk\/biospec\/wp-content\/uploads\/sites\/313\/2022\/03\/deepraman3.jpg 425w, https:\/\/sites.exeter.ac.uk\/biospec\/wp-content\/uploads\/sites\/313\/2022\/03\/deepraman3-300x300.jpg 300w, https:\/\/sites.exeter.ac.uk\/biospec\/wp-content\/uploads\/sites\/313\/2022\/03\/deepraman3-150x150.jpg 150w\" sizes=\"(max-width: 425px) 100vw, 425px\" \/><\/figure><\/div>\n\n\n<p>Deep Raman techniques are a loose term that refers to Raman variants that permit subsurface probing and include spatially offset Raman spectroscopy (SORS)[1], inverse spatially offset Raman spectroscopy (iSORS) and transmission Raman, which in diffusely scattering samples allow controlled exploration of complex scattering samples at depths from \u00b5m up to limits of 5-6cm\u2019s.<\/p>\n\n\n\n<p>What the Deep Raman techniques have in common are different ways to separate the laser beam illumination zone on the sample surface and the Raman collection zone, which is important in diffusely scattering samples. In general terms as the Raman collection zone is further separated from the illumination zone, in diffusely scattering samples you get an increasing contribution from the sub surface in your collected Raman signal, as opposed to a signal that would usually be dominated by surface constituents in typical Raman setups. These techniques have been demonstrated in a range of ways including looking at artwork and pharmaceuticals [2, 3].<\/p>\n\n\n\n<p><strong>References<\/strong><\/p>\n\n\n\n<ol>\n<li>Matousek et al, Applied Spectroscopy 59, 393, (2005).<\/li>\n\n\n\n<li>Griffin et al, Journal of Pharmaceutical and Biomedical Analysis, 128, 35-45(2016).<\/li>\n\n\n\n<li>Conti et al, Journal of Raman spectroscopy, 46, 476-482(2015).<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Deep Raman techniques are a loose term that refers to Raman variants that permit subsurface probing and include spatially offset Raman spectroscopy (SORS)[1], inverse spatially offset Raman spectroscopy (iSORS) and transmission Raman, which in diffusely scattering samples allow controlled exploration of complex scattering samples at depths from \u00b5m up to limits of 5-6cm\u2019s. What the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":39,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-sidebar-boxed-feature-img.php","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Deep Raman Spectroscopy - BioSpec<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Deep Raman Spectroscopy - BioSpec\" \/>\n<meta property=\"og:description\" content=\"Deep Raman techniques are a loose term that refers to Raman variants that permit subsurface probing and include spatially offset Raman spectroscopy (SORS)[1], inverse spatially offset Raman spectroscopy (iSORS) and transmission Raman, which in diffusely scattering samples allow controlled exploration of complex scattering samples at depths from \u00b5m up to limits of 5-6cm\u2019s. What the [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/\" \/>\n<meta property=\"og:site_name\" content=\"BioSpec\" \/>\n<meta property=\"article:modified_time\" content=\"2023-09-21T15:54:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sites.exeter.ac.uk\/biospec\/wp-content\/uploads\/sites\/313\/2022\/03\/deepraman3.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/\",\"url\":\"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/\",\"name\":\"Deep Raman Spectroscopy - BioSpec\",\"isPartOf\":{\"@id\":\"https:\/\/sites.exeter.ac.uk\/biospec\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/sites.exeter.ac.uk\/biospec\/wp-content\/uploads\/sites\/313\/2022\/03\/deepraman3.jpg\",\"datePublished\":\"2023-09-21T12:57:03+00:00\",\"dateModified\":\"2023-09-21T15:54:43+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/#primaryimage\",\"url\":\"https:\/\/sites.exeter.ac.uk\/biospec\/wp-content\/uploads\/sites\/313\/2022\/03\/deepraman3.jpg\",\"contentUrl\":\"https:\/\/sites.exeter.ac.uk\/biospec\/wp-content\/uploads\/sites\/313\/2022\/03\/deepraman3.jpg\",\"width\":425,\"height\":425},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/sites.exeter.ac.uk\/biospec\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Techniques\",\"item\":\"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Deep Raman Spectroscopy\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/sites.exeter.ac.uk\/biospec\/#website\",\"url\":\"https:\/\/sites.exeter.ac.uk\/biospec\/\",\"name\":\"BioSpec\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/sites.exeter.ac.uk\/biospec\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Deep Raman Spectroscopy - BioSpec","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/","og_locale":"en_US","og_type":"article","og_title":"Deep Raman Spectroscopy - BioSpec","og_description":"Deep Raman techniques are a loose term that refers to Raman variants that permit subsurface probing and include spatially offset Raman spectroscopy (SORS)[1], inverse spatially offset Raman spectroscopy (iSORS) and transmission Raman, which in diffusely scattering samples allow controlled exploration of complex scattering samples at depths from \u00b5m up to limits of 5-6cm\u2019s. What the [&hellip;]","og_url":"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/","og_site_name":"BioSpec","article_modified_time":"2023-09-21T15:54:43+00:00","og_image":[{"url":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-content\/uploads\/sites\/313\/2022\/03\/deepraman3.jpg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/","url":"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/","name":"Deep Raman Spectroscopy - BioSpec","isPartOf":{"@id":"https:\/\/sites.exeter.ac.uk\/biospec\/#website"},"primaryImageOfPage":{"@id":"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/#primaryimage"},"image":{"@id":"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/#primaryimage"},"thumbnailUrl":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-content\/uploads\/sites\/313\/2022\/03\/deepraman3.jpg","datePublished":"2023-09-21T12:57:03+00:00","dateModified":"2023-09-21T15:54:43+00:00","breadcrumb":{"@id":"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/#primaryimage","url":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-content\/uploads\/sites\/313\/2022\/03\/deepraman3.jpg","contentUrl":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-content\/uploads\/sites\/313\/2022\/03\/deepraman3.jpg","width":425,"height":425},{"@type":"BreadcrumbList","@id":"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/deep-raman-spectroscopy\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/sites.exeter.ac.uk\/biospec\/"},{"@type":"ListItem","position":2,"name":"Techniques","item":"https:\/\/sites.exeter.ac.uk\/biospec\/techniques\/"},{"@type":"ListItem","position":3,"name":"Deep Raman Spectroscopy"}]},{"@type":"WebSite","@id":"https:\/\/sites.exeter.ac.uk\/biospec\/#website","url":"https:\/\/sites.exeter.ac.uk\/biospec\/","name":"BioSpec","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/sites.exeter.ac.uk\/biospec\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"}]}},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-json\/wp\/v2\/pages\/773"}],"collection":[{"href":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-json\/wp\/v2\/comments?post=773"}],"version-history":[{"count":3,"href":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-json\/wp\/v2\/pages\/773\/revisions"}],"predecessor-version":[{"id":919,"href":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-json\/wp\/v2\/pages\/773\/revisions\/919"}],"up":[{"embeddable":true,"href":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-json\/wp\/v2\/pages\/39"}],"wp:attachment":[{"href":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-json\/wp\/v2\/media?parent=773"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-json\/wp\/v2\/categories?post=773"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.exeter.ac.uk\/biospec\/wp-json\/wp\/v2\/tags?post=773"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}