{"id":365157,"date":"2017-02-15T03:00:00","date_gmt":"2017-02-15T00:00:00","guid":{"rendered":"https:\/\/www.fyysika.ee\/?guid=bfe420e30a78bc47a726a68d54e52afd"},"modified":"2017-02-15T03:00:00","modified_gmt":"2017-02-15T00:00:00","slug":"optogalvanic-effect-and-laser-induced-current-oscillations-in-hollow-cathode-lamps-2","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=365157","title":{"rendered":"Optogalvanic effect and laser-induced current oscillations in hollow-cathode lamps"},"content":{"rendered":"<p>This paper presents a study of two commercial hollow-cathode lamps (HCLs) with the\u00a0intention<br \/>\nof\u00a0demonstrating\u00a0different phenomena in gas discharges. The optogalvanic effect in both HCLs is<br \/>\nproduced by a laser diode radiated at the wavelength that corresponds\u00a0to neon transition 1s 2 \u20132p 2<br \/>\nat 659.89 nm. The voltage\u2013current characteristics of the lamps are explained using a classical<br \/>\ntheory of\u00a0hollow-cathode discharge, while the optogalvanic signal is treated as a\u00a0small perturbation<br \/>\nof the discharge current. For certain values of voltage self-sustained current oscillations are<br \/>\nobserved in one of the HCLs. In the same HCL laser-induced optogalvanic dumped oscillations are<br \/>\ndetected. A phenomenological model that\u00a0includes the effective circuit parameters of the discharge<br \/>\nis used to explain the oscillation characteristics.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This paper presents a study of two commercial hollow-cathode lamps (HCLs) with the\u00a0intention<br \/>\nof\u00a0demonstrating\u00a0different phenomena in gas discharges. The optogalvanic effect in both HCLs is<br \/>\nproduced by a laser diode radiated at the wavelength that &#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-365157","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\/365157","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=365157"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/365157\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=365157"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=365157"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=365157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}