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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">zhps-1695</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>АТОМНАЯ СПЕКТРОСКОПИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ATOMIC SPECTROSCOPY</subject></subj-group></article-categories><title-group><article-title>Электромагнитно-индуцированная прозрачность  в калиевой микроячейке и ее применение</article-title><trans-title-group xml:lang="en"><trans-title>Electromagnetically-induced transparency in potassium microcell and its application</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саргсян</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sargsyan</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аштарак</p></bio><bio xml:lang="en"><p>Ashtarak</p></bio><email xlink:type="simple">sarmeno@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физических исследований НАН Армении</institution><country>Армения</country></aff><aff xml:lang="en"><institution>Institute for Physical Research of the National Academy of Sciences of Armenia</institution><country>Armenia</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>15</day><month>11</month><year>2024</year></pub-date><volume>91</volume><issue>6</issue><fpage>775</fpage><lpage>780</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Саргсян А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Саргсян А.</copyright-holder><copyright-holder xml:lang="en">Sargsyan A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://zhps.ejournal.by/jour/article/view/1695">https://zhps.ejournal.by/jour/article/view/1695</self-uri><abstract><p>Исследован резонанс электромагнитно-индуцированной прозрачности (EIT) в калиевой микроячейке с толщиной столба паров атомов L = 30 мкм на D1-линии изотопа 39K. Экспериментально полученная ширина EIT-резонанса в 60 раз ýже доплеровской ширины линии атома калия. Во внешнем продольном магнитном поле происходит расщепление EIT-резонанса на три спектрально узкие компоненты. Теоретические кривые, рассчитанные по формуле Раби—Брейта, хорошо согласуются с экспериментальными результатами. </p></abstract><trans-abstract xml:lang="en"><p>The electromagnetically-induced transparency (EIT) resonance in a potassium microcell with a vapor column thickness of L = 30 μm on the D1 line of the 39K isotope was studied. The experimentally obtained width of EIT-resonance is 60 times narrower than the Doppler width of the potassium atom. In an external longitudinal magnetic field, the EIT-resonance splits into three spectrally narrow components. The theoretical curves calculated using the Rabi–Breit formula are in good agreement with the experimental results.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>микроячейка</kwd><kwd>электромагнитно-индуцированная прозрачность</kwd><kwd>магнитное поле</kwd></kwd-group><kwd-group xml:lang="en"><kwd>microcell</kwd><kwd>electromagnetically-induced transparency</kwd><kwd>magnetic field</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Комитета по высшему образованию и науке Республики Армения (проект № 1-6/IPR).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">R. Wynands, A. Nagel. Appl. Phys. B, 68 (1999) 1</mixed-citation><mixed-citation xml:lang="en">R. Wynands, A. Nagel. Appl. Phys. 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