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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">10.17586/2226-1494-2025-25-4-602-608</article-id><article-id custom-type="elpub" pub-id-type="custom">ntv-484</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>Нелинейное пропускание фторфосфатного стекла с квантовыми точками сульфидов и селенидов кадмия и свинца при воздействии фемтоcекундного лазерного излучения ближнего инфракрасного диапазона</article-title><trans-title-group xml:lang="en"><trans-title>Nonlinear transmission of fluorophosphate glass with quantum dots of cadmium and lead sulfides and selenides under near-IR of femtosecond laser irradiation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1341-067X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никоноров</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikonorov</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николай Валентинович Никоноров, доктор физико-математических наук, профессор, ведущий профессор</p><p>197101; Санкт-Петербург</p><p>sc 7003772604</p></bio><bio xml:lang="en"><p>Nikolay V. Nikonorov, D.Sc. (Physics &amp; Mathematics), Full Professor</p><p>197101; Saint Petersburg</p><p>sc 7003772604</p></bio><email xlink:type="simple">nikonorov@oi.ifmo.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0134-8434</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колобкова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolobkova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елена Вячеславовна Колобкова, доктор химических наук, профессор, профессор кафедры, профессор практики</p><p>197101; 190013; Санкт-Петербург</p><p>sc 57604636700</p></bio><bio xml:lang="en"><p>Elena V. Kolobkova, D.Sc. (Chemistry), Full Professor, Professor of Practice</p><p>197101; 190013; Saint Petersburg</p><p>sc 57604636700</p></bio><email xlink:type="simple">kolobok106@rambler.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9254-1116</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Цыпкин</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsypkin</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антон Николаевич Цыпкин, доктор физико-математических наук, доцент, доцент кафелры</p><p>197101; Санкт-Петербург</p><p>sc 56366230300</p></bio><bio xml:lang="en"><p>Anton N. Tsypkin, D.Sc. (Physics &amp; Mathematics), Associate Professor, Associate Professor at the Department</p><p>197101; Saint Petersburg</p><p>sc 56366230300</p></bio><email xlink:type="simple">tsypkinan@itmo.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5844-2966</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Исмагилов</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Ismagilov</surname><given-names>A. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Азат Олфатович Исмагилов, кандидат физико-математических наук, научный сотрудник</p><p>197101; Санкт-Петербург</p><p> sc 57195673891</p></bio><bio xml:lang="en"><p>Azat O. Ismagilov, PhD (Physics &amp; Mathematics), Scientific Researcher</p><p>197101; Saint Petersburg</p><p> sc 57195673891</p></bio><email xlink:type="simple">ismagilov.azat@itmo.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4009-7594</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Опарин</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Oparin</surname><given-names>Е. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Егор Николаевич Опарин, аспирант, научный сотрудник</p><p>197101; Санкт-Петербург</p><p>sc 57209803630</p></bio><bio xml:lang="en"><p>Еgor N. Oparin, PhD Student, Scientific Researcher</p><p>197101; Saint Petersburg</p><p>sc 57209803630</p></bio><email xlink:type="simple">oparine2@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4098-2136</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Асеев</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Aseev</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Анатольевич Асеев, кандидат физико-математических наук, доцент</p><p>197101; Санкт-Петербург</p><p>sc 7004254881</p></bio><bio xml:lang="en"><p>Vladimir A. Aseev, PhD (Physics &amp; Mathematics), Associate Professor</p><p>197101; Saint Petersburg</p><p>sc 7004254881</p></bio><email xlink:type="simple">aseev@oi.ifmo.ru</email><xref ref-type="aff" rid="aff-1"/></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; Санкт-Петербургский государственный технологический институт (технический университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>ITMO University; Saint Petersburg State Institute of Technology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>29</day><month>08</month><year>2025</year></pub-date><volume>25</volume><issue>4</issue><fpage>602</fpage><lpage>608</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Никоноров Н.В., Колобкова Е.В., Цыпкин А.Н., Исмагилов А.О., Опарин Е.Н., Асеев В.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Никоноров Н.В., Колобкова Е.В., Цыпкин А.Н., Исмагилов А.О., Опарин Е.Н., Асеев В.А.</copyright-holder><copyright-holder xml:lang="en">Nikonorov N.V., Kolobkova E.V., Tsypkin A.N., Ismagilov A.O., Oparin Е.N., Aseev V.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/484">https://ntv.elpub.ru/jour/article/view/484</self-uri><abstract><sec><title>   Введение</title><p>   Введение. Исследованы нелинейно оптические свойства фторфосфатного стекла с квантовыми точками сульфидов и селенидов кадмия (CdS и CdSe) и свинца (PbS и PbSe) при воздействии импульсного фемтосекундного лазера ближнего инфракрасного диапазона.</p></sec><sec><title>   Метод</title><p>   Метод. Фторфосфатные стекла с квантовыми точками получены методом высокотемпературного синтеза из шихтных реактивов с последующей дополнительной термообработкой. Нелинейное пропускание исследовалось при воздействии излученияь импульсного лазера с длиной волны 1050 нм и длительностью 100 фс.</p></sec><sec><title>   Основные результаты</title><p>   Основные результаты. Показано, что во фторфосфатных стеклах с квантовыми точками CdS и CdSe пропускание на длине волны 1050 нм составляет 0,78 и 0,88 соответственно и практически не меняется в дапазоне падающей на стекло средней мощности фемтосекундного лазерного излучения от 30 до 2000 мВт. Для той же длины волны пропускание составило: 0,62 для образца с квантовыми точками PbS и 0,1 — для образца PbSe. Для образцов стекол с квантовыми точками PbS и PbSe обнаружено уменьшение пропускания с увеличением мощности лазерного излучения, т. е. нелинейное пропускание (лимитинг). Порог ограничения мощности проходящего через образец лазерного излучения, при которой пропускание уменьшается более чем на 20 %, для образца с квантовыми точками PbS составил 1265 мВт, а при входной мощности около 1530 мВт этот образец имел пропускание менее 0,1 %. Порог ограничения мощности лазерного излучения для образца с квантовыми точками PbSe составил 600 мВт, а при входной мощности около 750 мВт этот образец практически не пропускал лазерное излучение.</p></sec><sec><title>   Обсуждение</title><p>   Обсуждение. Фторфосфатные стекла с квантовыми точками PbS и PbSe можно использовать в качестве фильтров-лимитеров для защиты фотоприемных устройств от импульсного лазерного излучения в ближнем инфракрасном диапазоне.</p></sec></abstract><trans-abstract xml:lang="en"><p>   Nonlinear optical properties of fluorophosphate glass with quantum dots of cadmium sulfides and selenides (CdS and CdSe) and lead (PbS and PbSe) were studied using a pulsed femtosecond near-IR laser. Fluorophosphate glasses with CdS, CdSe, PbS and PbSe quantum dots were obtained by high-temperature synthesis with additional heat treatment. Nonlinear absorption was studied under the action of a pulsed laser at a wavelength of 1050 nm and a duration of 100 fs. It is shown that the transmission at 1050 nm in fluorophosphate glasses with CdS and CdSe quantum dots is 0.78 and 0.88, respectively. In addition, increasing the average power of femtosecond laser radiation from 30 to 2000 mW does not lead to a change in their transmission. For this wavelength, the transmission was 0.1 for the sample with PbS nanocrystals and 0.65 for the sample with PbSe quantum dots. A decrease in transmission with increasing laser radiation power was shown for glass samples with PbS and PbSe quantum dots, i. e., nonlinear transmission (limiting) was observed. The threshold for limiting the power of laser radiation passing through the sample, i.e., the power at which the transmission decreases by more than 20 %, for the sample with PbS quantum dots was 1265 mW, and for an input power of about 1530 mW, this sample had a transmission of less than 0.1 %. The laser power limitation threshold for the PbSe quantum dot sample was 600 mW, and for an input power of about 750 mW it had a transmittance of less than 0.1 %. Fluorophosphate glasses with lead sulfide and selenide quantum dots can be used as limiting filters to protect photodetectors from pulsed laser radiation in the near IR range.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фторфосфатное стекло</kwd><kwd>квантовые точки сульфида кадмия</kwd><kwd>квантовые точки сульфида свинца</kwd><kwd>квантовые точки селенида кадмия</kwd><kwd>квантовые точки селенида свинца</kwd><kwd>нелинейно оптическое пропускание</kwd><kwd>нелинейно оптический лимитер</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fluorophosphate glass</kwd><kwd>cadmium sulfide quantum dots</kwd><kwd>lead sulfide quantum dots</kwd><kwd>cadmium selenide quantum dots</kwd><kwd>lead selenide quantum dots</kwd><kwd>nonlinear optical transmission</kwd><kwd>nonlinear optical limiter</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Российского научного фонда (проект № 24-43-20020)</funding-statement><funding-statement xml:lang="en">The work was supported by the Russian Science Foundation (Project No. 24-43-20020)</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">Shirk J.S., Pong R.G.S., Flom S.R., Boyle M.E., Snow A.W. 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