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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">ntv</journal-id><journal-title-group><journal-title xml:lang="ru">Научно-технический вестник информационных технологий, механики и оптики</journal-title><trans-title-group xml:lang="en"><trans-title>Scientific and Technical Journal of Information Technologies, Mechanics and Optics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-1494</issn><issn pub-type="epub">2500-0373</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2226-1494-2024-24-3-384-398</article-id><article-id custom-type="elpub" pub-id-type="custom">ntv-267</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>ОПТИЧЕСКИЕ СИСТЕМЫ И ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>OPTICAL ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Фемтосекундная лазерная модификация золь-гель пленок ZnO:Ag с проявлением дихроизма</article-title><trans-title-group xml:lang="en"><trans-title>Femtosecond laser modification of the ZnO:Ag sol-gel films within dichroism emergence</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3308-6034</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гресько</surname><given-names>В. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Gresko</surname><given-names>V. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гресько Владислав Романович — младший научный сотрудник, ассистент</p><p>Санкт-Петербург, 197101</p></bio><bio xml:lang="en"><p>Vladislav R. Gresko — Junior Researcher</p><p>Saint Petersburg, 197101</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2854-9954</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сергеев</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Sergeev</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергеев Максим Михайлович — кандидат технических наук, старший научный сотрудник, доцент</p><p>Санкт- Петербург, 197101</p></bio><bio xml:lang="en"><p>Maksim M. Sergeev — PhD, Senior Researcher, Associate Professor</p><p>Saint Petersburg, 197101</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0349-2296</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнова</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnova</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Смирнова Виктория Викторовна — старший лаборант</p><p>Санкт-Петербург, 197101</p></bio><bio xml:lang="en"><p>Victoria V. Smirnova — Senior Laboratory Assistant</p><p>Saint Petersburg, 197101</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9548-791X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Долгополов</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Dolgopolov</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Долгополов Артур Джуракулович — инженер</p><p>Санкт-Петербург, 197101</p></bio><bio xml:lang="en"><p>Arthur D. Dolgopolov — Engineer</p><p>Saint Petersburg, 197101</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9725-5912</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сокура</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokura</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сокура Лилия Александровна — научный сотрудник; научный сотрудник</p><p>Санкт-Петербург, 197101</p><p>Санкт-Петербург, 194021</p></bio><bio xml:lang="en"><p>Liliia A. Sokura — Scientific Researcher; Scientific Researcher</p><p>Saint Petersburg, 197101</p><p>Saint Petersburg, 194021</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7998-1686</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Костюк</surname><given-names>Г. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Kostyuk</surname><given-names>G. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Костюк Галина Кирилловна — кандидат технических наук, научный сотрудник</p><p>Санкт-Петербург, 197101</p></bio><bio xml:lang="en"><p>Galina K. Kostyuk — PhD, Scientific Researcher</p><p>Saint Petersburg, 197101</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0614-6695</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Григорьев</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Grigoryev</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Григорьев Евгений Анатольевич — специалист по сканирующей электронной микроскопии</p><p>Санкт-Петербург, 199034</p></bio><bio xml:lang="en"><p>Evgeniy A. Grigoryev — Scanning Electron Microscopy Specialist</p><p>Saint Petersburg, 199034</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет ИТМО</institution><country>Россия</country></aff><aff xml:lang="en"><institution>ITMO University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Университет ИТМО; Физико-технический институт им. А.Ф. Иоффе</institution><country>Россия</country></aff><aff xml:lang="en"><institution>ITMO University; Ioffe Institute</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>16</day><month>12</month><year>2024</year></pub-date><volume>24</volume><issue>3</issue><fpage>384</fpage><lpage>398</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гресько В.Р., Сергеев М.М., Смирнова В.В., Долгополов А.Д., Сокура Л.А., Костюк Г.К., Григорьев Е.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Гресько В.Р., Сергеев М.М., Смирнова В.В., Долгополов А.Д., Сокура Л.А., Костюк Г.К., Григорьев Е.А.</copyright-holder><copyright-holder xml:lang="en">Gresko V.R., Sergeev M.M., Smirnova V.V., Dolgopolov A.D., Sokura L.A., Kostyuk G.K., Grigoryev E.A.</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://ntv.elpub.ru/jour/article/view/267">https://ntv.elpub.ru/jour/article/view/267</self-uri><abstract><sec><title>Введение</title><p>Введение. Исследовано влияние поляризации фемтосекудного лазерного излучения на формирование эллипсоидных наночастиц серебра (Ag) и их ориентацию в золь-гель пленках оксида цинка (ZnO). Влияние поляризации является причиной возникновения дихроизма в пленках после облучения. В отличие от серебросодержащих стекол, где этот механизм впервые был обнаружен, в тонких золь-гель пленках данный эффект практически не исследован, что определяет актуальность работы. Метод. Управление формой, размерами и ориентацией наночастиц Ag осуществлялось путем воздействия лазерными фемтосекундными импульсами с высокой частотой повторения и линейной поляризацией, ориентированной вдоль и поперек направлений сканирования. Для возникновения дихроизма требовалось обеспечить высокое поглощение лазерного излучения наночастицами и отсутствие поглощения в матрице ZnO. Дихроизм в пленках ZnO с наночастицами Ag (ZnO:Ag) исследовался методами оптической микроскопии и спектрофотометрии в проходящем свете. Анализ размера, концентрации, формы и ориентации наночастиц в пленке проводился с применением электронной микроскопии. </p></sec><sec><title>Основные результаты</title><p>Основные результаты. Показано, что возникновение дихроизма происходит в результате воздействия на пленки лазерным излучением с плотностью энергии от 43 до 99 мДж/см2 за импульс при скорости сканирования 1 мм/с. Выявлено, что при данных значениях плотности энергии происходит формирование эллипсоидных наночастиц, большая ось которых преимущественно ориентирована вдоль линии поляризации фемтосекундного излучения вне зависимости от направления сканирования. В результате лазерного облучения модифицированные области пленки приобрели дихроизм. При параллельном расположении оси поляризации падающего света с направлением линейной поляризации фемтосекундного излучения, с помощью которого осуществляется запись, происходит смещение пика плазмонного резонанса в длинноволновую область спектра. При повороте модифицированных областей на 90° пик плазмонного резонанса смещается в коротковолновую область спектра. При плотности энергии выше 99 мДж/см2 дихроизм сохраняется, но эффект дихроизма снижается, размер наночастиц уменьшается и начинается постепенное разрушение матрицы пленки с образованием наноразмерных пор и трещин. </p></sec><sec><title>Обсуждение</title><p>Обсуждение. Полученные результаты могут найти применение при записи поляризационно- чувствительных элементов малых размеров, спектральное пропускание которых зависит от ориентации вектора линейной поляризации падающего на них света. Предложенный подход позволяет корректировать положение пика плазмонного резонанса в спектральном диапазоне от 450 до 650 нм и может найти применение для повышения чувствительности фотодетекторов в требуемом спектральном диапазоне.</p></sec></abstract><trans-abstract xml:lang="en"><p>Polarization of femtosecond laser radiation influence on the windings of ellipsoidal silver nanoparticles and their orientation in zinc oxide sol-gel films was studied, which caused the appearance of dichroism in the films of the irradiation field. Unlike silver-containing glasses, where this mechanism was discovered, it has hardly been studied in thin sol-gel films before. Femtosecond laser pulses with a high degree of repetition and linear polarization controlled the shape, size and orientation of silver nanoparticles which was oriented horizontally along and across the direction. For dichroism to occur, it is necessary to ensure high-quality separation of laser transducers by Ag nanoparticles and the absence of differences in the zinc oxide matrix. Dichroism in such ZnO:Ag films was investigated by optical microscopy and spectrophotometry away from light. Analysis of the size, content, shape and location of nanoparticles in the film was conducted taking into account electron microscopy. It has been shown that the relationship between dichroism as a result of exposure of the film to laser radiation with energy density ranging from 43 to 99 mJ/cm2 per pulse and flow velocity of 1 mm/s. It was investigated that at given fluence, the interruption of ellipsoidal nanoparticles, most of which are simply oriented along the polarization line of the femtosecond transformation, occurs depending on the direction of the transformation. As a result of laser treatment, modified areas of the film acquired dichroism. When the polarization axis of the incident light was parallel to the direction of linear polarization of the femtosecond radiation with which the regions were recorded, the plasmon resonance peak shifted to the long-wavelength deflection region. When the changed zones were rotated by 90°, the peak of the plasmon resonance shifted to a shorter wavelength region relative to. At fluence above 99 mJ/cm2, dichroism remained, but it decreased sharply, the size of nanoparticles decreased and began to gradually destroy the film matrix with the formation of nanoscale pores and cracks. Obtained results can be used to register polarization-sensitive elements of small sizes, the spectral transmission of which will depend on the orientation of the linear polarization vector of the light incident on them. The proposed method allows adjustment of plasmon resonance peak position in the spectral range from 450 to 650 nm, which can also be used to increase the sensitivity of photodetectors in the specified spectral range.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фемтосекундные лазерные импульсы</kwd><kwd>дихроизм</kwd><kwd>золь-гель пленки</kwd><kwd>пленки оксида цинка</kwd><kwd>наночастицы серебра</kwd><kwd>плазмонный резонанс</kwd><kwd>лазерная модификация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>femtosecond laser pulses</kwd><kwd>dichroism</kwd><kwd>sol-gel films</kwd><kwd>zinc oxide films</kwd><kwd>silver nanoparticles</kwd><kwd>plasmon resonance</kwd><kwd>laser modification</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследования финансировались за счет гранта Российского научного фонда (проект № 19-79-10208). Исследование структуры методом СЭМ-электронной микроскопии проведено в Центре нанотехнологий Научного парка Санкт-Петербургского государственного университета в рамках проекта № АААА-А19-119091190094-6.</funding-statement><funding-statement xml:lang="en">This work was funded by the Russian Science Foundation (No. 19-79-10208). The investigation of the structure by means of scanning electron microscopy was carried out at the IRC for Nanotechnology of the Science Park of St. Petersburg State University within the framework of project No. АААА-А19-119091190094-6.</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">Srikant V., Clarke D.R. On the optical band gap of zinc oxide // Journal of Applied Physics. 1998. V. 83. N 10. P. 5447–5451. https:// doi.org/10.1063/1.367375</mixed-citation><mixed-citation xml:lang="en">Srikant V., Clarke D.R. 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