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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-1922</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>НЕЛИНЕЙНАЯ СПЕКТРОСКОПИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>NONLINEAR SPECTROSCOPY</subject></subj-group></article-categories><title-group><article-title>Спектроскопия насыщенного поглощения в микрометрических атомарных слоях для изучения переходов цезия 6S1/2→7P3/2 на длине волны 456 нм</article-title><trans-title-group xml:lang="en"><trans-title>Micrometric Atomic Layer Saturated Absorption Spectroscopy for Studying Cesium 6S1/2→7P3/2 Transitions at 456 nm</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 contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саркисян</surname><given-names>Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Sarkisyan</surname><given-names>D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аштарак</p></bio><bio xml:lang="en"><p>Ashtarak</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физических исследований Национальной академии наук Армении</institution></aff><aff xml:lang="en"><institution>Institute for Physical Research, National Academy of Sciences of Armenia</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>07</day><month>09</month><year>2025</year></pub-date><volume>92</volume><issue>4</issue><fpage>440</fpage><lpage>444</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Саргсян А., Саркисян Д., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Саргсян А., Саркисян Д.</copyright-holder><copyright-holder xml:lang="en">Sargsyan A., Sarkisyan D.</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/1922">https://zhps.ejournal.by/jour/article/view/1922</self-uri><abstract><p>Приведены особенности бездоплеровских резонансов, формируемых при сканировании перехода 6S1/2→7P3/2 атома Cs на длине волны 456 нм в ячейке микрометрического размера. Использована техника насыщенного поглощения в ячейке толщиной L = 40 мкм. Сила осциллятора этих переходов в 60 раз слабее, чем для переходов Cs 6S1/2→6P3/2 на длине волны 852 нм. Бездоплеровские резонансы имеют спектральную ширину линии &lt;20 МГц, что в 38 раз меньше ширины доплеровской линии 750 МГц при 120 оC. Эти узкие резонансы представляют интерес для спектроскопии высокого разрешения и приборостроения, в частности для создания компактных частотных реперов в синей области.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents the features of Doppler-free resonances formed during scanning of the 6S1/2→7P3/2 transition of Cs atom at the wavelength of 456 nm in a micrometer cell. The saturated absorption technique in a cell with a thickness of L = 40 μm was used. The oscillator strength of these transitions is 60 times weaker than for Cs 6S1/2→6P3/2 transitions at the wavelength of 852 nm. The Doppler-free resonances have a spectral line width of &lt;20 MHz, which is 38 times smaller than the Doppler line width of 750 MHz at 120оC. These narrow resonances are of interest for both high-resolution spectroscopy and instrumentation, in particular, the creation of compact frequency references in the blue region.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>бездоплеровский резонанс</kwd><kwd>сила осциллятора</kwd><kwd>доплеровская ширина</kwd><kwd>микрометрическая ячейка</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Doppler-free resonance</kwd><kwd>oscillator strength</kwd><kwd>Doppler width</kwd><kwd>micrometer cell</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Комитета по высшему образованию и науке Республики Армения в рамках проекта N 25RG-1C008.</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">J. Kitching. Appl. Phys. Rev., 5 (2018) 301—302</mixed-citation><mixed-citation xml:lang="en">J. Kitching. Appl. Phys. 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