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<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">najo-1270</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="en"><subject>CONTRIBUTED TALKS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>CONTRIBUTED TALKS</subject></subj-group></article-categories><title-group><article-title>Experimental and Theoretical Characterisation of Josephson   Self-coupling in Sub-Terahertz Flux-flow Oscillator</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Gulevich</surname><given-names>D. R.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Dmitriev</surname><given-names>P. N.</given-names></name></name-alternatives><bio xml:lang="en"><p> Moscow, 125009</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Koshelets</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="en"><p>Moscow, 125009</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Kusmartsev</surname><given-names>F. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Department of Physics, Loughborough University</institution><country>United Kingdom</country></aff><aff xml:lang="en" id="aff-2"><institution>Kotel’nikov Institute of Radio Engineering and Electronics,&#13;
 RAS</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2013</year></pub-date><pub-date pub-type="epub"><day>20</day><month>08</month><year>2025</year></pub-date><volume>4</volume><issue>4</issue><issue-title>Special Issue.  INTERNATIONAL CONFERENCE   "MATHEMATICAL CHALLENGE OF QUANTUM  TRANSPORT IN NANOSYSTEMS - 2013.   PIERRE DUCLOS WORKSHOP"</issue-title><fpage>507</fpage><lpage>511</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Gulevich D.R., Dmitriev P.N., Koshelets V.P., Kusmartsev F.V., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Gulevich D.R., Dmitriev P.N., Koshelets V.P., Kusmartsev F.V.</copyright-holder><copyright-holder xml:lang="en">Gulevich D.R., Dmitriev P.N., Koshelets V.P., Kusmartsev F.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://nanojournal.ifmo.ru/jour/article/view/1270">https://nanojournal.ifmo.ru/jour/article/view/1270</self-uri><abstract><p>We present experimental and numerical results for a flux flow oscillator based on superconducting Josephson junctions. Our computationally efficient theoretical model takes into account Josephson self-coupling of the flux flow oscillator and is in a good agreement with our experimental results and previous studies.</p><p> </p></abstract><kwd-group xml:lang="en"><kwd>flux flow oscillator</kwd><kwd>superconducting Josephson junctions</kwd><kwd>fluxons</kwd><kwd>Terahertz radiation</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The work was supported by the RFBR and the Ministry of Education and Science of the  Russian Federation.</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">T. Nagatsuma et al. J. Appl. Phys., 54, 3302 (1983); ibid 56, 3284 (1984); ibid 58, 441 (1985); ibid 63, 1130 (1988).</mixed-citation><mixed-citation xml:lang="en">T. Nagatsuma et al. J. Appl. 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