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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-405</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>ЛОКАЛИЗАЦИЯ ДИЭЛЕКТРИЧЕСКОЙ СФЕРИЧЕСКОЙ НАНОЧАСТИЦЫ ПОД ДЕЙСТВИЕМ ДВУХ РАДИАЦИОННЫХ СИЛ В ПОЛЕ СФОКУСИРОВАННОГО ЛАЗЕРНОГО ПУЧКА ГАУССОВОЙ ФОРМЫ</article-title><trans-title-group xml:lang="en"><trans-title>LOCALIZATION OF DIELECTRIC SPHERICAL NANOPARTICLE UNDER THE ACTION OF RADIATION FORCES IN FIELD OF FOCUSED LASER GAUSSIAN BEAM</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>Свистун</surname><given-names>А. Ч.</given-names></name><name name-style="western" xml:lang="en"><surname>Svistun</surname><given-names>A. Ch.</given-names></name></name-alternatives><email xlink:type="simple">laser777@gmail.com; svistun_ach@grsu.by; gls@grsu.by</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>Гайда</surname><given-names>Л. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Gaida</surname><given-names>L. S.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Матук</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Matuk</surname><given-names>E. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Гродненский государственный университет им. Янки Купалы</institution></aff><aff xml:lang="en"><institution>Yanka Kupala State University of Grodno</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>10</day><month>03</month><year>2020</year></pub-date><volume>86</volume><issue>2</issue><fpage>298</fpage><lpage>303</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Свистун А.Ч., Гайда Л.С., Матук Е.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Свистун А.Ч., Гайда Л.С., Матук Е.В.</copyright-holder><copyright-holder xml:lang="en">Svistun A.C., Gaida L.S., Matuk E.V.</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/405">https://zhps.ejournal.by/jour/article/view/405</self-uri><abstract><p>Решено уравнение Ланжевена численными методами с нулевыми начальными условиями, которые описывают движение прозрачной сферической наночастицы под действием результирующей силы светового давления в поле непрерывного сфокусированного лазерного пучка гауссовой формы. Определены фокусное расстояние линзы, необходимое для локализации сферической наночастицы вблизи точки фокальной перетяжки пучка, и координаты, в которых компоненты радиационных сил принимают экстремальные значения, а также проанализирована их зависимость от фокусного расстояния линзы.</p></abstract><trans-abstract xml:lang="en"><p>The Langevin equation describing the motion of a transparent spherical nanoparticle under the influence of the resulting force of light pressure in a field of a continuous focused Gaussian laser beam is solved by numerical methods with zero initial conditions. The focal length of the lens, which is necessary for the localization of a spherical nanoparticle near the point of the beam focal waist, has been determined. The coordinates where the components of the radiation forces take extreme values are determined, and their dependence on the lens focal length is analyzed. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>наночастица</kwd><kwd>радиационные силы</kwd><kwd>рассеяние света</kwd><kwd>гауссов пучок</kwd><kwd>фокусное расстояние</kwd><kwd>nanoparticle</kwd><kwd>radiation forces</kwd><kwd>light scattering</kwd><kwd>Gaussian beam</kwd><kwd>focal length</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">A. Ashkin. Phys. Rev. Lett., 24 (1970) 156-159</mixed-citation><mixed-citation xml:lang="en">A. Ashkin. Phys. Rev. Lett., 24 (1970) 156-159</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">A. Ashkin. Biophys. J., 61 (1992) 569-582</mixed-citation><mixed-citation xml:lang="en">A. Ashkin. Biophys. 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