{"id":80212,"date":"2025-12-29T15:16:29","date_gmt":"2025-12-29T09:46:29","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=80212"},"modified":"2025-12-29T22:57:05","modified_gmt":"2025-12-29T17:27:05","slug":"frequency-comb","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/frequency-comb\/","title":{"rendered":"Frequency Comb"},"content":{"rendered":"<h2><b>Frequency Comb Latest News<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Frequency combs are an important modern tool which are used to calibrate atomic clocks and have various other applications.<\/span><\/p>\n<h2><b>About Frequency Comb<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is a <\/span><b>special kind of laser light<\/b><span style=\"font-weight: 400;\"> whose spectrum, or set of frequencies, resembles the teeth of a comb.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Frequency combs are simple and compact tools that phase coherently connect the <\/span><b>radio frequency domain<\/b><span style=\"font-weight: 400;\"> (say below 100GHz) with <\/span><b>the optical domain<\/b><span style=\"font-weight: 400;\"> (say above 200THz).<\/span><\/li>\n<\/ul>\n<h2><b>Characteristics of Frequency Comb<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Instead of containing just one colour (one frequency), it emits a large number of <\/span><b>evenly spaced frequencies<\/b><span style=\"font-weight: 400;\">. The spacing is extremely regular.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Frequency combs are widely-used, <\/span><b>high-precision tools<\/b><span style=\"font-weight: 400;\"> for measuring and detecting different frequencies colors \u2014 of light.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It has high <\/span><b>stability and precision.<\/b><\/li>\n<\/ul>\n<h2><b>Applications of Frequency comb<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It helps scientists compare an unknown light frequency to a stable reference with extraordinary precision.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Frequency combs are an important modern tool to <\/span><b>calibrate atomic clocks<\/b><span style=\"font-weight: 400;\"> and <\/span><b>measure shifts in light caused by gravity.<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is used to <\/span><b>detect exoplanets.<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is also used in <\/span><b>high-speed spectroscopy<\/b><\/li>\n<\/ul>\n<p><b>Source: <\/b><strong><a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/what-is-a-frequency-comb\/article70442980.ece#:~:text\" target=\"_blank\" rel=\"nofollow noopener\">TH<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Frequency Comb is a special kind of laser light whose spectrum, or set of frequencies, resembles the teeth of a comb. Read more about Frequency Comb, Characteristics, Applications, Latest News.<\/p>\n","protected":false},"author":24,"featured_media":80216,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[4479,21,22,23],"class_list":{"0":"post-80212","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"tag-frequency-comb","9":"tag-prelims-pointers","10":"tag-upsc-current-affairs","11":"tag-upsc-prelims-current-affairs","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/80212","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=80212"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/80212\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/80216"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=80212"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=80212"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=80212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}