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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-212</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>***</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>***</subject></subj-group></article-categories><title-group><article-title>КОНТРОЛЬ КВАНТОВОЙ ТРАЕКТОРИИ ИЗЛУЧЕНИЯ ГАРМОНИК И ГЕНЕРАЦИЯ ИЗОЛИРОВАННОГО АТТОСЕКУНДНОГО ИМПУЛЬСА С ПОМОЩЬЮ АСИММЕТРИЧНОГО НЕОДНОРОДНОГО ПОЛЯ СРЕДНЕГО ИК ДИАПАЗОНА</article-title><trans-title-group xml:lang="en"><trans-title>QUANTUM PATH CONTROL OF HARMONIC EMISSION AND ISOLATED ATTOSECOND PULSE GENERATION BY USING THE ASYMMETRIC INHOMOGENEOUS MID-INFRARED FIELD</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>Feng</surname><given-names>L. Q.</given-names></name><name name-style="western" xml:lang="en"><surname>Feng</surname><given-names>L. Q.</given-names></name></name-alternatives><email xlink:type="simple">lqfeng1101@gmail.com; lqfeng@lnut.edu.cn</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>Li</surname><given-names>W. L.</given-names></name><name name-style="western" xml:lang="en"><surname>Li</surname><given-names>W. L.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</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>Castle</surname><given-names>R. S.</given-names></name><name name-style="western" xml:lang="en"><surname>Castle</surname><given-names>R. S.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Колледж науки, Технологический университет Ляонин; Даляньский институт химической физики Китайской АН</institution></aff><aff xml:lang="en"><institution>College of Science, Liaoning University of Technology; Dalian Institute of Chemical Physics, Chinese Academy of Sciences</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Даляньский институт химической физики Китайской АН; Синьцзянский инженерный институт</institution></aff><aff xml:lang="en"><institution>Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Xinjiang Institute of Engineering</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Колледж науки, Технологический университет Ляонин</institution></aff><aff xml:lang="en"><institution>College of Science, Liaoning University of Technology</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>10</day><month>03</month><year>2020</year></pub-date><volume>85</volume><issue>1</issue><elocation-id>171(1)-171(12)</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Feng L.Q., Li W.L., Castle R.S., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Feng L.Q., Li W.L., Castle R.S.</copyright-holder><copyright-holder xml:lang="en">Feng L.Q., Li W.L., Castle R.S.</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/212">https://zhps.ejournal.by/jour/article/view/212</self-uri><abstract><p>Исследована генерация гармоник высокого порядка атомом гелия, обусловленная асимметричным полем среднего ИК диапазона, создаваемым металлической наноструктурой. Обнаружено, что вследствие асимметричного усиления лазерного излучения в пространстве может наблюдаться не только расширение области отсечки гармоник, но и излучение одиночной гармоники, обусловленное вкладом одной короткой квантовой траектории. Путем соответствующего добавления терагерцового управляющего импульса область гармонической отсечки может быть дополнительно расширена вплоть до сверхширокой 1208 эВ полосы с усилением интенсивности до двух порядков величины. За счет правильного наложения гармоник может быть получена последовательность изолированных импульсов длительностью 33 ас с энергией фотонов от 123 эВ (10 нм) до 1256 эВ (1 нм).</p></abstract><trans-abstract xml:lang="en"><p>High-order harmonic generation (HHG) from the He atom driven by the asymmetric inhomogeneous mid-infrared field, produced by a metallic nanostructure, has been investigated. It is found that due to the asymmetric enhancement of the laser intensity in space, not only the harmonic cutoff can be extended, but also the single harmonic emission event with the single short quantum path contribution can be obtained. Further, by properly adding a terahertz (THz) controlling pulse, the harmonic cutoff can be further extended, showing a 1208 eV super-bandwidth with the intensity enhancement of two orders of magnitude. Finally, by properly superposing the harmonics, a series of the isolated 33 as pulses with the photon energies from 123 eV (10 nm) to 1256 eV (1 nm) can be obtained.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>генерация гармоник высокого порядка</kwd><kwd>контроль квантовой траектории излучения гармоник</kwd><kwd>генерация аттосекундных импульсов</kwd><kwd>асимметричное неоднородное поле</kwd><kwd>high-order harmonic generation</kwd><kwd>quantum path control of harmonic emission</kwd><kwd>attosecond pulse generation</kwd><kwd>asymmetric inhomogeneous field</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">F. Krausz, M. Ivanov, Rev. Mod. Phys., 81, 163-234 (2009).</mixed-citation><mixed-citation xml:lang="en">F. Krausz, M. Ivanov, Rev. Mod. 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