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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">mireabulletin</journal-id><journal-title-group><journal-title xml:lang="ru">Russian Technological Journal</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Technological Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-3210</issn><issn pub-type="epub">2500-316X</issn><publisher><publisher-name>RTU MIREA</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2500-316X-2016-4-4-3-12</article-id><article-id custom-type="elpub" pub-id-type="custom">mireabulletin-26</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>ЭКСПЕРИМЕНТАЛЬНОЕ ИССЛЕДОВАНИЕ И РАСЧЕТ ЭФФЕКТИВНОСТИ ГЕНЕРАЦИИ ВТОРОЙ ОПТИЧЕСКОЙ ГАРМОНИКИ В ДОМЕННЫХ СТРУКТУРАХ НИОБАТА ЛИТИЯ</article-title><trans-title-group xml:lang="en"><trans-title>CALCULATION OF THE OPTICAL SECOND HARMONIC GENERATION EFFICIENCY IN THE LITHIUM NIOBATE DOMAIN 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>Лавров</surname><given-names>С. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Lavrov</surname><given-names>S. D.</given-names></name></name-alternatives><email xlink:type="simple">sdlavrov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский технологический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Technological University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>28</day><month>08</month><year>2016</year></pub-date><volume>4</volume><issue>4</issue><fpage>3</fpage><lpage>12</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лавров С.Д., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Лавров С.Д.</copyright-holder><copyright-holder xml:lang="en">Lavrov S.D.</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://www.rtj-mirea.ru/jour/article/view/26">https://www.rtj-mirea.ru/jour/article/view/26</self-uri><abstract><p>В работе представлены экспериментальные и теоретические результаты исследования нелинейно-оптических свойств доменных структур ниобата лития, созданных с помощью сфокусированного электронного пучка. Экспериментальные результаты получены с помощью методики сканирующей конфокальной микроскопии, позволяющей проводить недеструктивный анализ геометрических объемных параметров доменных структур, благодаря высокой чувствительности второй оптической гармоники к сегнетоэлектрической поляризации исследуемого материала. Показано наличие периодического сигнала мощности второй оптической гармоники в местах расположения доменных структур. На основе модели Бойда произведено численное моделирование мощности второй оптической гармоники в объеме кристалла с учетом фокусировки оптического излучения в его объеме. Показано согласование полученных теоретических и экспериментальных результатов. Продемонстрирована возможность определения объемных параметров доменных структур с помощью конфокальной нелинейно-оптической микроскопии.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents the experimental and theoretical study results of nonlinear optical properties of lithium niobate domain structures created by a focused electron beam. The presence of a second optical harmonic periodic signal in the locations of the domain structures is shown. The numerical simulation of the second harmonic optical power was done based on the model of Boyd. The possibility of determining the volumetric parameters of domain structures using nonlinear confocal optical microscopy is shown.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>доменные структуры</kwd><kwd>нелинейно-оптическая микроскопия</kwd><kwd>моде- лирование второй оптической гармоники</kwd></kwd-group><kwd-group xml:lang="en"><kwd>domain structure</kwd><kwd>nonlinear optical microscopy</kwd><kwd>optical second harmonic simulation</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Myers L.E. [et al.] Quasi-phase-matched optical parametric oscillators in bulk periodically poled LiNbO3 // J. Opt. Soc. Am. B. 1995. V. 12, № 11. P. 2102-2116.</mixed-citation><mixed-citation xml:lang="en">Myers L.E. [et al.] Quasi-phase-matched optical parametric oscillators in bulk periodically poled LiNbO3 // J. Opt. Soc. Am. B. 1995. V. 12, № 11. 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