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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-797</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Влияние скорости перестройки частоты диодного лазера на форму контура линии поглощения при измерении малых концентраций во внешнем резонаторе с неосевым вводом излучения</article-title><trans-title-group xml:lang="en"><trans-title>Influence of the Frequency Tuning Rate of a Diode Laser on the Shape of the Absorption Line Contour when Measuring Low Concentrations in an External Cavity with Off-Axis Alignment</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>Лагунов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lagunov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, Москва, ГСП-1.</p></bio><bio xml:lang="en"><p>Moscow, 119991 GSP-1.</p></bio><email xlink:type="simple">lagunoww@yandex.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>Николаев</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolaev</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, Москва, ГСП-1.</p></bio><bio xml:lang="en"><p>Moscow, 119991 GSP-1.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Очкин</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Ochkin</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, Москва, ГСП-1.</p></bio><bio xml:lang="en"><p>Moscow, 119991 GSP-1.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Физический институт им. П.Н. Лебедева Российской АН</institution></aff><aff xml:lang="en"><institution>Р.N. Lebedev Physical Institute of the Russian Academy of Sciences</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>28</day><month>05</month><year>2021</year></pub-date><volume>88</volume><issue>3</issue><fpage>373</fpage><lpage>377</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лагунов В.В., Николаев И.В., Очкин В.Н., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Лагунов В.В., Николаев И.В., Очкин В.Н.</copyright-holder><copyright-holder xml:lang="en">Lagunov V.V., Nikolaev I.V., Ochkin V.N.</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/797">https://zhps.ejournal.by/jour/article/view/797</self-uri><abstract><p>Исследована асимметрия регистрируемых контуров линий поглощения паров воды в кварцевой трубке при комнатной температуре при давлениях 0.03—1.00 Торр. Измерения проводились методом диодной лазерной спектроскопии с внешним оптическим резонатором. С целью качественного прописывания узких контуров линий поглощения использовалась неосевая юстировка резонатора. Измерения проводились с разной скоростью перестройки частоты лазера 0.1—0.8 см-1/мс с зеркалами с коэффициентами отражения 99 и 99.98 % и разными направлениями перестройки частоты лазера. Асимметрия линий возникает из-за временной задержки излучения внутри резонатора. Результаты моделирования измерений с учетом заполнения резонатора лазерным излучением и его затухания во времени на выходе из резонатора хорошо согласуются с экспериментальными данными.</p></abstract><trans-abstract xml:lang="en"><p>The asymmetry of the recorded contours of the absorption lines of water vapor in a quartz tube at room temperature at pressures of 0.03-1 Torr was investigated. The measurements were carried out using the method of diode laser spectroscopy with an external optical cavity. In order to accurately define narrow contours of absorption lines off-axis alignment of the resonator was used. The measurements were carried out with different laser frequency tuning rates of 0.1-0.8 cm-1/ms with mirrors with 99 and 99.98% reflectivity and different directions of laser frequency tuning. Line asymmetry occurs due to the time delay of radiation inside the cavity. The results of numerical modeling taking into account the filling of the cavity with laser radiation and its decaying in time at the cavity output are in good agreement with the experimental data.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лазерная спектроскопия</kwd><kwd>перестройка частоты</kwd><kwd>оптический резонатор</kwd><kwd>спектроскопия поглощения</kwd><kwd>измерение концентрации воды</kwd></kwd-group><kwd-group xml:lang="en"><kwd>laser spectroscopy</kwd><kwd>frequency tuning</kwd><kwd>optical resonator</kwd><kwd>absorption spectroscopy</kwd><kwd>water concentration measurement</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена за счет средств Российского научного фонда (грант № 19-12-00310).</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">G. Wang, S. Crumeyrolle, B. Hanoune, C. Coeur, H. Yi, E. 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