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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-1806</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>Влияние типа металла и толщины слоeв на поглощение оптического излучения профилированными структурами Si3N4/Me/Si3N4</article-title><trans-title-group xml:lang="en"><trans-title>Influence of Metal Type and Layer Thickness on Absorption of Optical Radiation by Profiled Si3N4/Me/Si3N4 Structures</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>Козодоев</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozodoev</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><email xlink:type="simple">serikoz12345@gmail.com</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>Мухаммад</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Muhammad</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</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>Колос</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolos</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гайдук</surname><given-names>П. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Gaiduk</surname><given-names>P. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет; ОАО “ИНТЕГРАЛ” — управляющая компания холдинга “ИНТЕГРАЛ”</institution></aff><aff xml:lang="en"><institution>Belarusian State University; JSC “INTEGRAL”, “INTEGRAL” Holding Managing Company</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Белорусский государственный университет</institution></aff><aff xml:lang="en"><institution>Belarusian State University</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ОАО “ИНТЕГРАЛ” — управляющая компания холдинга “ИНТЕГРАЛ”</institution></aff><aff xml:lang="en"><institution>JSC “INTEGRAL”, “INTEGRAL” Holding Managing Company</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>187</fpage><lpage>192</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Козодоев С.В., Мухаммад А.И., Колос В.В., Гайдук П.И., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Козодоев С.В., Мухаммад А.И., Колос В.В., Гайдук П.И.</copyright-holder><copyright-holder xml:lang="en">Kozodoev S.V., Muhammad A.I., Kolos V.V., Gaiduk P.I.</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/1806">https://zhps.ejournal.by/jour/article/view/1806</self-uri><abstract><p>В спектрах поглощения оптического излучения структурами Si3N4/Me/Si3N4, рассчитанных методом конечных разностей во временной области, обнаружено влияние толщины структурных слоев на интенсивность и ширину полосы поглощения. Уменьшение суммарной толщины верхнего и нижнего слоев Si3N4 с 400 до 100 нм приводит к росту поглощения в среднем на 20 % и уширению полосы поглощения с интенсивностью &gt;90 % с 0.8 до 1.6 мкм. Показано, что в спектре поглощения структуры Si3N4/Ti/Si3N4 с толщиной каждого слоя 50 нм ширина полосы поглощения с интенсивностью &gt;90 % составляет 4.3 мкм. Уменьшение толщины профилированного слоя Ti от 130 до 50 нм приводит к незначительному снижению максимального значения поглощения с 99 до 96 %. Показано, что уширение полосы поглощения связано с влиянием толщины Si3N4 на интерференционные процессы в структурах Si3N4/Ti/Si3N4. Установлено, что зависимость интенсивности поглощения от типа металла в диапазоне 8.3—13 мкм может быть обусловлена зависимостью концентрации свободных электронов от типа металла.</p></abstract><trans-abstract xml:lang="en"><p>In the optical absorption spectra of Si3N4/Me/Si3N4 structures calculated by the finite difference time domain method, the effect of the structural layer thickness on the absorption peak level and width was found. Reducing the thickness of the upper and lower Si3N4 layers from 400 to 100 nm leads to about 20% increase in absorption and broadening of the absorption band with the intensity of &gt;90 % from 0.8 to 1.6 μm. It is shown that in the absorption spectrum of Si3N4/Ti/Si3N4 structure with the thickness of each layer of 50 nm, the thickness of the absorption band with the intensity of &gt;90 % consists 4.3 μm. Reducing the profiled layer of Ti from 130 to 50 nm leads to an insignificant decrease in the maximum absorption value from 99 to 96%. It has been shown that the absorption band broadening is connected with the effect of Si3N4 thickness to the interferential processes in Si3N4/Ti/Si3N4 structures. It is established that in the range of 8.3–13 μm there is a dependence of the absorption level on the metal type due to the dependence of free electrons concentration on the metal type.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>плазмонное поглощение</kwd><kwd>спектр поглощения</kwd><kwd>профилированные слои</kwd><kwd>микроболометр</kwd></kwd-group><kwd-group xml:lang="en"><kwd>plasmonic absorption</kwd><kwd>absorption spectrum</kwd><kwd>profiled layers</kwd><kwd>microbolometer</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках проекта государственной программы научных исследований “Фотоника и электроника для инноваций” (проект 3.1.2, № ГР 20212702), а также при финансовой поддержке Белорусского республиканского фонда фундаментальных исследований в рамках гранта Т-22-030.</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">Xiaochuan Lyu. 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