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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-1808</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>СПЕКТРОСКОПИЯ НАНОСТРУКТУР</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SPECTROSCOPY OF NANOSTRUCTURE</subject></subj-group></article-categories><title-group><article-title>Ток прозрачности и спектр усиления квантовых яма-точек InGaAs/GaAs</article-title><trans-title-group xml:lang="en"><trans-title>Transparency Current and Gain Spectrum of InGaAs/GaAs Quantum Well-Dots</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>Корнышов</surname><given-names>Г. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Kornyshov</surname><given-names>G. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><email xlink:type="simple">gk@mail.ioffe.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>Паюсов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Payusov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</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>Харченко</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kharchenko</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бекман</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Beckman</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</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>Шерняков</surname><given-names>Ю. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Shernyakov</surname><given-names>Yu. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</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>Минтаиров</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mintairov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</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>Калюжный</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalyuzhny</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</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>Максимов</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Maksimov</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гордеев</surname><given-names>Н. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Gordeev</surname><given-names>N. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Физико-технический институт им. А. Ф. Иоффе</institution></aff><aff xml:lang="en"><institution>A. F. Ioffe Institute of Physics and Technology</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Академический университет им. Ж. И. Алферова</institution></aff><aff xml:lang="en"><institution>J. I. Alferov Academic University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>27</day><month>03</month><year>2025</year></pub-date><volume>92</volume><issue>2</issue><fpage>193</fpage><lpage>197</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Корнышов Г.О., Паюсов А.С., Харченко А.А., Бекман А.А., Шерняков Ю.М., Минтаиров С.А., Калюжный Н.А., Максимов М.В., Гордеев Н.Ю., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Корнышов Г.О., Паюсов А.С., Харченко А.А., Бекман А.А., Шерняков Ю.М., Минтаиров С.А., Калюжный Н.А., Максимов М.В., Гордеев Н.Ю.</copyright-holder><copyright-holder xml:lang="en">Kornyshov G.O., Payusov A.S., Kharchenko A.A., Beckman A.A., Shernyakov Y.M., Mintairov S.A., Kalyuzhny N.A., Maksimov M.V., Gordeev N.Y.</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/1808">https://zhps.ejournal.by/jour/article/view/1808</self-uri><abstract><p>Получена экспериментальная зависимость тока прозрачности квантовых яма-точек InGaAs/GaAs от энергии фотонов, которая соответствует разности квазиуровней Ферми для электронов и дырок. Полученная зависимость и известное соотношение между спонтанным излучением и оптическим поглощением позволяют рассчитать спектры модального усиления из спектров спонтанного излучения. Рассчитаны спектры модального усиления квантовых яма-точек InGaAs/GaAs при различных токах накачки. Предложенным методом можно исследовать спектры усиления приборов, работающих в режиме суперлюминесценции, когда положение максимума усиления неизвестно</p></abstract><trans-abstract xml:lang="en"><p>The experimental dependence of the transparency current of InGaAs/GaAs quantum well-dots on the photon energy, which corresponds to the difference of quasi-Fermi levels for electrons and holes, has been obtained. It is shown that modal gain spectra can be calculated from spontaneous luminescence spectra using the obtained dependence and a relation between spontaneous luminescence and optical absorption. The modal gain spectra of InGaAs/GaAs quantum well-dots at different pump currents have been calculated. The technique can be used to study gain spectra of the devices operating in superluminescence regimes, when the position of the gain maximum is unknown.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>оптическое усиление</kwd><kwd>ток прозрачности</kwd><kwd>квантовые яма-точки</kwd></kwd-group><kwd-group xml:lang="en"><kwd>optical gain</kwd><kwd>transparency current</kwd><kwd>quantum well-dots</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена за счет гранта Российского научного фонда № 23-72-00038 (https://rscf.ru/project/23-72-00038/). А. А. Харченко благодарит Министерство науки и высшего образования РФ (проект FSRM-2023-0010) за поддержку экспериментальных исследований с использованием перестраиваемого лазера. Коллектив авторов благодарит заведующего центром “Лазерная техника и технологии” Института физики НАН Беларуси, д-ра физ.-мат. наук, проф. Г. И. 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