{"id":520169,"date":"2017-09-27T02:00:00","date_gmt":"2017-09-26T23:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=0c9406712eb025b0f06b4b1cb3d52651"},"modified":"2017-09-27T02:00:00","modified_gmt":"2017-09-26T23:00:00","slug":"white-light-sagnac-interferometer-a-common-path-tale-of-light","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=520169","title":{"rendered":"White light Sagnac interferometer\u2014a common (path) tale of light"},"content":{"rendered":"<p>White or polychromatic light sources are vastly abundant in nature and lie in our most basic<br \/>\nunderstanding of the theory of light, beginning from stars like our Sun and extending to every<br \/>\ncommon household light bulb or street lamp. In this paper, I present concepts of white light<br \/>\ninterferometery using a common-path Sagnac interferometer, manifested in a straightforward<br \/>\nlaboratory experiment. I further show the use of this as a Fourier transform spectrometer while<br \/>\npresenting a basic overview of the theoretical concepts and spectrum of different light sources<br \/>\nobtained experimentally. This work, both experimentally and analytically, is suitable for<br \/>\nupper-level undergraduate physics or engineering courses where electromagnetic theory and optics are<br \/>\ndiscussed. The experiment and theory presents important deep concepts and aspects in modern optics<br \/>\nand physics that every science student should acquire.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>White or polychromatic light sources are vastly abundant in nature and lie in our most basic<br \/>\nunderstanding of the theory of light, beginning from stars like our Sun and extending to every<br \/>\ncommon household light bulb or street lamp. In this paper, I p&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-520169","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/520169","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=520169"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/520169\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=520169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=520169"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=520169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}