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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-1423</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>КРАТКИЕ СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BRIEF COMMUNICATIONS</subject></subj-group></article-categories><title-group><article-title>Характер изменения контура Фойгта линии слабого поглощения в лазерном спектрометре с аналитическим резонатором</article-title><trans-title-group xml:lang="en"><trans-title>Patterns of Change in Voigt Contours of the Weak Absorption Line in a Laser Spectrometer with an Analytical Cavity</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>Вохник</surname><given-names>О. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Vokhnik</surname><given-names>O. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">vokhnik@rambler.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>Короленко</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Korolenko</surname><given-names>P. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет имени М. В. Ломоносова</institution></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>25</day><month>11</month><year>2023</year></pub-date><volume>90</volume><issue>6</issue><fpage>959</fpage><lpage>963</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Вохник О.М., Короленко П.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Вохник О.М., Короленко П.В.</copyright-holder><copyright-holder xml:lang="en">Vokhnik O.M., Korolenko P.V.</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/1423">https://zhps.ejournal.by/jour/article/view/1423</self-uri><abstract><p>Исследовано изменение контура свертки Фойгта в спектрометре для измерения слабого поглощения, состоящего из перестраиваемого по частоте лазера и внешнего аналитического резонатора. Установлено, каким образом характеристики свертки и параметры резонатора влияют на воспроизведение формы и ширины линии поглощения. Обсуждено влияние насыщения поглощения на точность измерения коэффициента слабого поглощения.</p></abstract><trans-abstract xml:lang="en"><p>The variation of the Voigt convolution contour in a spectrometer for measuring of weak absorption consisting of a frequency-tunable laser and an external analytical resonator is studied. It is established how the characteristics of the convolution and the parameters of the resonator affect the reproduction of the shape and width of the absorption line. The effect of absorption saturation on the accuracy of measuring the weak absorption coefficient is discussed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>контур Фойгта</kwd><kwd>оптический резонатор</kwd><kwd>спектрометр</kwd><kwd>лазер с перестраиваемой частотой</kwd><kwd>насыщение поглощения</kwd><kwd>качество спектральных измерений</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Voigt contour</kwd><kwd>optical resonator</kwd><kwd>spectrometer</kwd><kwd>frequency-tunable laser</kwd><kwd>absorption saturation</kwd><kwd>quality of spectral measurements</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Е. В. Степанов. Диодная лазерная спектроскопия и анализ молекул-биомаркеров, Москва, Физматлит (2009)</mixed-citation><mixed-citation xml:lang="en">Е. В. Степанов. 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