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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">pimi</journal-id><journal-title-group><journal-title xml:lang="ru">Приборы и методы измерений</journal-title><trans-title-group xml:lang="en"><trans-title>Devices and Methods of Measurements</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-9506</issn><issn pub-type="epub">2414-0473</issn><publisher><publisher-name>BNTU</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">pimi-226</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>Методы измерений, контроля, диагностики</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Methods of measurements, monitoring, diagnostics</subject></subj-group></article-categories><title-group><article-title>ПРИМЕНЕНИЕ МЕТОДОВ ФЮХТБАУЭРА–ЛАДЕНБУРГА И СООТВЕТСТВИЯ ДЛЯ ОПРЕДЕЛЕНИЯ СПЕКТРОВ СЕЧЕНИЙ СТИМУЛИРОВАННОГО ИСПУСКАНИЯ НЕОДИМОВЫХ ЛАЗЕРНЫХ СРЕД</article-title><trans-title-group xml:lang="en"><trans-title>APPLICATION OF FÜCHTBAUER–LADENBURG EQUATION AND RECIPROCITY METHOD FOR DETERMINATION OF EMISSION CROSS SECTIONS OF ND-DOPED LASER MEDIA</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>Демеш</surname><given-names>М. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Demesh</surname><given-names>M. P.</given-names></name></name-alternatives><email xlink:type="simple">anatol@bntu.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>Гусакова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gusakova</surname><given-names>N. V.</given-names></name></name-alternatives><email xlink:type="simple">anatol@bntu.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>Ясюкевич</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Yasukevich</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Адрес для переписки: Ясюкевич А.С. Белорусский национальный технический университет, пр. Независимости, 65, 220013, г. Минск, Беларусь e-mail: anatol@bntu.by</p></bio><bio xml:lang="en"><p>Address for correspondence: Yasukevich A.S. Belarusian National Technical University, Nezavisimosty Ave., 65, 220013, Minsk, Belarus e-mail: anatol@bntu.by</p></bio><email xlink:type="simple">anatol@bntu.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>Кулешов</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuleshov</surname><given-names>N. V.</given-names></name></name-alternatives><email xlink:type="simple">anatol@bntu.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>Григорьев</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Grigor`ev</surname><given-names>S. V.</given-names></name></name-alternatives><email xlink:type="simple">anatol@bntu.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>Крот</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Krot</surname><given-names>Y. A.</given-names></name></name-alternatives><email xlink:type="simple">anatol@bntu.by</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Космына</surname><given-names>М. б</given-names></name><name name-style="western" xml:lang="en"><surname>Kosmyna</surname><given-names>M. V.</given-names></name></name-alternatives><email xlink:type="simple">anatol@bntu.by</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шеховцов</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Shekchotsov</surname><given-names>A. N.</given-names></name></name-alternatives><email xlink:type="simple">anatol@bntu.by</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский национальный технический университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian National Technical University</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт прикладных физических проблем им. А.Н. Севченко Белорусского государственного университета</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>A.N. Sevchenko Institute of Applied Physical Problems of Belarusian State University</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт монокристаллов НАН Украины</institution><country>Украина</country></aff><aff xml:lang="en"><institution>Institute for Single Crystal of the National Academy of Science of Ukraine</institution><country>Ukraine</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>09</day><month>12</month><year>2015</year></pub-date><volume>6</volume><issue>2</issue><fpage>211</fpage><lpage>219</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Демеш М.П., Гусакова Н.В., Ясюкевич А.С., Кулешов Н.В., Григорьев С.В., Крот Ю.А., Космына М.б., Шеховцов А.Н., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Демеш М.П., Гусакова Н.В., Ясюкевич А.С., Кулешов Н.В., Григорьев С.В., Крот Ю.А., Космына М.б., Шеховцов А.Н.</copyright-holder><copyright-holder xml:lang="en">Demesh M.P., Gusakova N.V., Yasukevich A.S., Kuleshov N.V., Grigor`ev S.V., Krot Y.A., Kosmyna M.V., Shekchotsov A.N.</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://pimi.bntu.by/jour/article/view/226">https://pimi.bntu.by/jour/article/view/226</self-uri><abstract><p>Для создания лазеров, генерирующих импульсы ультракороткой длительности, представляют большой интерес лазерные материалы с широкими полосами усиления. В этой связи значительный интерес представляют структурно разупорядоченные материалы, в частности новые кристаллические среды, принадлежащие тригональной сингонии Nd3+:Ca10K(VO4 )7 (Nd:CKV), Nd3+:Ca9 La(VO4 )7 (Nd:CLaV) и Nd3+:Ca10Li(VO4 )7 (Nd:CLiV). В данной работе формула Фюхтбауэра-Ладенбурга и интегральный метод соответствия применены для определения спектров сечений стимулированного испускания указанных выше кристаллов на переходах 4 F3/2 → 4 I9/2, 4 F3/2 → 4 I11/2, и 4 F3/2 → 4 I13/2 иона неодима. Максимальные пиковые значения сечений стимулированного испускания и наибольшие спектральные ширины полос в области 1,07 мкм составляют 9,33·10-20 см2 (σ-поляризация, Nd:CKV) и 30 нм (π-поляризация,  Nd:CKV), в области 1,35 мкм – 1,55·10-20 см2 и 50 нм (π-поляризация, Nd:CKV). Полосы стимулированного испускания, а следовательно, и усиления в областях спектра 1,07 и 1,35 мкм являются гладкими и бесструктурными с ширинами, позволяющими получать ультракороткие импульсы света с длительностью  ≈  60 фс (1,07 мкм), ≈ 45 фс (1,35 мкм) в лазерах на исследованных лазерных средах, работающих в режиме синхронизации мод. </p></abstract><trans-abstract xml:lang="en"><p>Rare-earth doped crystals with broad bands of gain spectra are attractive for femtosecond laser applications. Therefore, for this purposes crystals with disordered structure are of great interest. In this article we investigate laser-related spectroscopic properties of new trigonal crystals Nd3+:Ca10K(VO4 )7 (Nd:CKV), Nd3+:Ca9 La(VO4 )7 (Nd:CLaV) и Nd3+:Ca10Li(VO4 )7 (Nd:CLiV). The Füchtbauer-Ladenburg equation and the integral reciprocity method were applied for determination of stimulated emission cross section spectra for Nd3+ ions. The maximum values of emission cross sections and bandwidth (FWHM) near λ = 1,07 μm are 9,33·10 -20cm2 (σ – polarization, Nd:CKV) and 30 nm (π – polarization, Nd:CKV), near λ = 1,35 μm – 1,55·1020cm2 and 50 nm (π – polarization, Nd:CKV). The broad and smooth bands of the gain spectra in the regions near 1,07 and 1,35 μm make it possible to generate ultra short light pulses with duration of about 60 fs (1,07 µm) and 45 fs (1,35  µm) in the mode-locking regime. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>двойной ортованадат</kwd><kwd>коэффициент ветвления люминесценции</kwd><kwd>сечение стимулированного испускания</kwd><kwd>формула Фюхтбауэра–Ладенбурга</kwd><kwd>интегральный метод соответствия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>calcium vanadate</kwd><kwd>luminescence branching ratio</kwd><kwd>stimulated emission cross-sections</kwd><kwd>the FüchtbauerLadenburg equation</kwd><kwd>the integral method of reciprocity</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">Kisel, V.E. Femtosecond pulse generation with a diode-pumped Yb3+:YVO4 laser / V.E. 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Journal of App. Spectroscopy. 2004, vol. 71, pp. 202–208.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
