{"id":1419,"date":"2020-05-04T18:45:45","date_gmt":"2020-05-04T18:45:45","guid":{"rendered":"https:\/\/wtheiss.com\/wordpress\/?p=1419"},"modified":"2020-05-04T18:45:45","modified_gmt":"2020-05-04T18:45:45","slug":"polarizer-for-r-and-t-measurements","status":"publish","type":"post","link":"https:\/\/wtheiss.com\/wordpress\/?p=1419","title":{"rendered":"Polarizer for R and T measurements"},"content":{"rendered":"

We have added a polarizer to our desktop R and T measurement system. The same polarizer can be used for all systems recording R and T for shiny, non-scattering samples.<\/p>\n

\"\"<\/a><\/p>\n

The desktop system records the 100% signal when detector and light source are positioned directly opposite to each other:<\/p>\n

\"\"<\/a><\/p>\n

After this measurement you can do absolute reflectance measurements at arbitrary angles of incidence. We have generated tools to conveniently set fixed angles of incidence – here we have used 45\u00b0 and 60\u00b0.<\/p>\n

\"\"<\/a><\/p>\n

The graph below shows 4 absolute spectra of a silicon wafer (45\u00b0, 60\u00b0, s- and p-polarization). We could achieve almost perfect match of simulated spectra based on literature data of the optical constants, fitting a thickness of 6.2 nm of the native SiO2 layer on the wafer. Data acquisition for each spectrum took less than 1 second (averaging 18 spectra using an integration time of 50 ms).<\/p>\n

\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

We have added a polarizer to our desktop R and T measurement system. The same polarizer can be used for all systems recording R and T for shiny, non-scattering samples. The desktop system records the 100% signal when detector and light source are positioned directly opposite to each other: After this measurement you can do […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[2,213,207,9,4,1],"tags":[],"_links":{"self":[{"href":"https:\/\/wtheiss.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1419"}],"collection":[{"href":"https:\/\/wtheiss.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wtheiss.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wtheiss.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wtheiss.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1419"}],"version-history":[{"count":1,"href":"https:\/\/wtheiss.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1419\/revisions"}],"predecessor-version":[{"id":1420,"href":"https:\/\/wtheiss.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1419\/revisions\/1420"}],"wp:attachment":[{"href":"https:\/\/wtheiss.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1419"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wtheiss.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1419"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wtheiss.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}