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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">dan-310</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>ФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICS</subject></subj-group></article-categories><title-group><article-title>ОСОБЕННОСТИ ФОКУСИРОВКИ СВЕТА ПЛОСКОЙ ЛИНЗОЙ НА ОСНОВЕ СТРУКТУРЫ МЕТАЛЛ–ДИЭЛЕКТРИК</article-title><trans-title-group xml:lang="en"><trans-title>PECULIARITIES OF LIGHT FOCUSING WITH A FLAT LENS BASED ON THE METAL–DIELECTRIC STRUCTURE</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>Казак</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazak</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>академик</p></bio><email xlink:type="simple">lod@ifanbel.bas-net.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>Агашков</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Agashkov</surname><given-names>A. V.</given-names></name></name-alternatives><email xlink:type="simple">a.agashkov@ifanbel.bas-net.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>Хило</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Khilo</surname><given-names>N. A.</given-names></name></name-alternatives><email xlink:type="simple">n.khilo@ifanbel.bas-net.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>Варанецкий</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Varanetski</surname><given-names>A. M.</given-names></name></name-alternatives><email xlink:type="simple">varanetck@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физики им. Б. И. Степанова НАН Беларуси</institution></aff><aff xml:lang="en"><institution>B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>02</day><month>08</month><year>2016</year></pub-date><volume>60</volume><issue>3</issue><fpage>43</fpage><lpage>50</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Казак Н.С., Агашков А.В., Хило Н.А., Варанецкий А.М., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Казак Н.С., Агашков А.В., Хило Н.А., Варанецкий А.М.</copyright-holder><copyright-holder xml:lang="en">Kazak N.S., Agashkov A.V., Khilo N.A., Varanetski A.M.</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://doklady.belnauka.by/jour/article/view/310">https://doklady.belnauka.by/jour/article/view/310</self-uri><abstract><p>Показано, что линзы на основе структуры металл–диэлектрик (МД) энергетически наиболее эффективны в ультрафиолетовом и фиолетовом диапазонах длин волн. Фазовые характеристики плоской линзы как в ультрафиолетовом, так и в видимом диапазонах для p-поляризованного света имеют вогнутую форму, что и является необходимым условием фокусировки. Впервые проведено прямое измерение угловой зависимости фазового сдвига свето- вой волны, прошедшей через плоскую оптически тонкую двухслойную МД-структуру (Ag/SiO2 ). Экспериментально установлено, что для падающей сферической волны с радиальной поляризацией (p-поляризация) реализуется режим фокусирования, а с азимутальной поляризацией (s-поляризация) реализуется режим каналирования.</p></abstract><trans-abstract xml:lang="en"><p>It is shown that lenses based on the metal – dielectric (MD) structure are energetically more efficient in ultraviolet and violet ranges of wavelengths. Phase characteristics of flat lenses in ultraviolet as well as in visible ranges for the p-polarized light have a concave shape, which is the necessary condition of focusing. For the first time, direct measurement is made of the flat optically thin two-layered MD-structure (Ag/SiO2 ). It has been found experimentally that for an incident spherical wave with radial polarization (p-polarization), the focusing regime is realized, and with azimuthal polarization (s-polarization) the channeling regime is realized.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гиперболический метаматериал</kwd><kwd>структура металл–диэлектрик</kwd><kwd>плоская линза</kwd><kwd>субволновое разрешение</kwd><kwd>дифференциальный поляризационный интерферометр</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hyperbolic metamaterial</kwd><kwd>structure metal–dielectric</kwd><kwd>flat lens</kwd><kwd>sub-wavelength resolution</kwd><kwd>walk-off interferometer</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">Веселаго, В. Г. 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