{"id":7775,"date":"2024-09-12T16:27:30","date_gmt":"2024-09-12T13:27:30","guid":{"rendered":"https:\/\/quantum-electronics.ru\/en\/?p=7775"},"modified":"2024-09-12T16:27:30","modified_gmt":"2024-09-12T13:27:30","slug":"increasing-the-yield-of-x-ray-and-thz-radiation-under-the-action-of-femtosecond-laser-pulses-on-a-thin-foil","status":"publish","type":"post","link":"https:\/\/quantum-electronics.ru\/en\/increasing-the-yield-of-x-ray-and-thz-radiation-under-the-action-of-femtosecond-laser-pulses-on-a-thin-foil\/","title":{"rendered":"Increasing the yield of X-ray and THz radiation under the action of femtosecond laser pulses on a thin foil"},"content":{"rendered":"<p>M. M. Nazarov, P. A. Shcheglov, A. A. Garmatina, M. V. Chashchin, Z. Ch. Margushev, K. A. Bzheumikhov, A. V. Mitrofanov, D. A. Sidorov-Biryukov, A. M. Zheltikov, V. M. Gordienko, V. Ya. Panchenko<\/p>\n<ul>\n<li>National Research Centre &#8220;Kurchatov Institute&#8221;, Moscow<\/li>\n<li>Federal State Budget Scientific Establishment &#8220;Federal Scientific Center \u201cKabardino-Balkarian Scientific Center of the Russian Academy of Sciences&#8221;, Nalchik<\/li>\n<li>Institute on Laser and Information Technologies, Branch of the Federal Research Centre \u2018Crystallography and Photonics\u2019<\/li>\n<li>Russian Quantum Center, Skolkovo, Moscow<\/li>\n<li>Faculty of Physics, Lomonosov Moscow State University<\/li>\n<li>Department of Physics and Astronomy, Texas A&#038;M University<\/li>\n<\/ul>\n<p><strong>Abstract:<\/strong> We demonstrate experimentally that when a copper foil is exposed to femtosecond sub-relativistic laser pulses, the intensities characteristic X-rays (XRs), terahertz (THz) radiation, and the second optical harmonic increase simultaneously with decreasing foil thickness. The generation efficiency of XRs and THz radiation, as well as of the 3\/2 harmonic, depends with different degrees of nonlinearity on the laser pulse intensity and duration. The general behaviour of the measured signals is determined by the two-plasmon decay instability, the contribution of hot electrons and their recirculation in the observed processes.<\/p>\n<p><strong>Keywords:<\/strong> characteristic X-rays, terahertz radiation, electron recirculation, sub-relativistic intensity.<\/p>\n<p><strong>Received:<\/strong> 24.05.2022<\/p>\n","protected":false},"excerpt":{"rendered":"<p>M. M. Nazarov, P. A. Shcheglov, A. A. Garmatina, M. V. Chashchin, Z. Ch. Margushev, K. A. Bzheumikhov, A. V. Mitrofanov, D. A. Sidorov-Biryukov, A. M. Zheltikov, V. M. Gordienko, V. Ya. Panchenko National Research Centre &#8220;Kurchatov Institute&#8221;, Moscow Federal State Budget Scientific Establishment &#8220;Federal Scientific Center \u201cKabardino-Balkarian Scientific Center of the Russian Academy of\u2026 <span class=\"read-more\"><a href=\"https:\/\/quantum-electronics.ru\/en\/increasing-the-yield-of-x-ray-and-thz-radiation-under-the-action-of-femtosecond-laser-pulses-on-a-thin-foil\/\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3001,3000,2999,2998,1666,1669,379,796,348,353,1664],"class_list":["post-7775","post","type-post","status-publish","format-standard","hentry","category-stats","tag-d-a-sidorov-biryukov","tag-k-a-bzheumikhov","tag-m-v-chashchin","tag-p-a-shcheglov","tag-a-a-garmatina","tag-a-v-mitrofanov","tag-a-m-zheltikov","tag-v-m-gordienko","tag-v-ya-panchenko","tag-z-ch-margushev","tag-m-m-nazarov"],"_links":{"self":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/posts\/7775","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/comments?post=7775"}],"version-history":[{"count":0,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/posts\/7775\/revisions"}],"wp:attachment":[{"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/media?parent=7775"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/categories?post=7775"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantum-electronics.ru\/en\/wp-json\/wp\/v2\/tags?post=7775"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}