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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">pribor</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Приборостроение</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Instrument Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3454</issn><issn pub-type="epub">2500-0381</issn><publisher><publisher-name>Национальный исследовательский университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/0021-3454-2022-65-2-101-111</article-id><article-id custom-type="elpub" pub-id-type="custom">pribor-200</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>ОПТИЧЕСКИЕ И ОПТИКО-ЭЛЕКТРОННЫЕ ПРИБОРЫ И СИСТЕМЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>OPTICAL AND OPTO-ELECTRONIC INSTRUMENTS AND SYSTEMS</subject></subj-group></article-categories><title-group><article-title>Фазовые маски из двулучепреломляющих пластин для получения заданного очертания лазерных пучков с ультракороткими импульсами при обработке материалов в плоскости изображения</article-title><trans-title-group xml:lang="en"><trans-title>Phase Masks Made of Birefringent Plates nfor Shaping Laser Beams with Ultrashort Pulses for Laser Material Processing in the Image Plae.</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>Костюк</surname><given-names>Г. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Kostyuk</surname><given-names>G. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Галина Кирилловна Костюк — канд. техн. наук; факультет наноэлектроники; научный сотрудник</p></bio><bio xml:lang="en"><p>Galina K. Kostyuk — PhD; Faculty of Nanoelectronics; Research Fellow</p></bio><email xlink:type="simple">gkkostiuk@itmo.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>Шкуратова</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shkuratova</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виктория Александровна Шкуратова — магистр; факультет наноэлектроники; инженер-исследователь</p></bio><bio xml:lang="en"><p>Victoria A. Shkuratova — MSc;  Faculty of Nanoelectronics; Engineer-Researcher</p></bio><email xlink:type="simple">shkuratova_va@mail.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>Петров</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Анатольевич Петров — канд. техн. наук; факультет наноэлектроники; старший преподаватель</p></bio><bio xml:lang="en"><p>Andrey A. Petrov — PhD; IFaculty of Nanoelectronics; Senior Lecturer</p></bio><email xlink:type="simple">aapetrov@itmo.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>Сергеев</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Sergeev</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Максим Михайлович Сергеев — канд. техн. наук; факультет наноэлектроники; старший научный сотрудник</p></bio><bio xml:lang="en"><p>Maksim M. Sergeev — PhD; Faculty of Nanoelectronics; Senior Researcher</p></bio><email xlink:type="simple">maxim.m.sergeev@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Университет ИТМО<country>Россия</country></aff><aff xml:lang="en">ITMO University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>30</day><month>11</month><year>2024</year></pub-date><volume>65</volume><issue>2</issue><fpage>101</fpage><lpage>111</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Национальный исследовательский университет ИТМО, 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Национальный исследовательский университет ИТМО</copyright-holder><copyright-holder xml:lang="en">Национальный исследовательский университет ИТМО</copyright-holder><license xlink:href="https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://pribor.ifmo.ru/jour/article/view/200">https://pribor.ifmo.ru/jour/article/view/200</self-uri><abstract><p>Представлены фазовые маски, выполненные из двулучепреломляющих кристаллических пластин CaCO3, для получения заданного очертания лазерных пучков в схеме построения изображения с распределением интенсивности по сечению пучка, близким к распределению с плоской вершиной. Принцип работы фазовых масок основан на создании фазового сдвига π или 2π (в зависимости от исходной толщины пластины) в линейно поляризованном излучении, проходящем через вытравленные области заданной формы. Фазовый сдвиг в областях заданной формы преобразуется в распределение интенсивности на выходе анализатора, которое с уменьшением проецируется объективом в плоскость изображения, совмещенную с плоскостью микрообработки или мишенью. Фазовые маски в форме квадрата и квадрата в квадрате изготовлены путем обработки оптически прозрачных материалов лазерно-индуцированной микроплазмой и успешно протестированы в экспериментальной установке в схеме построения изображения с лазером, излучающим на длине волны 1,06 мкм импульсы длительностью 120 нс. Также фазовые маски использованы в этой экспериментальной установке для лазерной абляции образцов полированной стали. Формы отпечатков на образцах хорошо соответствовали очертаниям формируемых пучков.</p></abstract><trans-abstract xml:lang="en"><p>Phase masks made of birefringent CaCO3 crystal plates are developed to create laser beam with a given shape and intensity distribution close to flat-top in image construction scheme. The principle of phase masks operation is based on creating the phase shift of π or 2π (depending on the initial plate thickness) in linearly polarized radiation passing through etched areas with given shapes. The phase shift in these areas transforms into the intensity distribution at an analyzer output, which can be projected with a demagnification by a high-quality lens into its image plane aligned with the micro-processing plane (target). Phase masks in the form of a square and a square in a square are made by processing optically transparent materials with laser-induced microplasma and successfully tested in an experimental setup in an imaging scheme with a laser emitting pulses of 120 ns duration at the wavelength of 1.06 μm. Phase masks are also used in this experimental setup for laser ablation of polished steel samples. The shapes of footprints on samples well match the formed beams shapes.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фазовая маска</kwd><kwd>геометрический фазовый элемент</kwd><kwd>лазерный пучок</kwd><kwd>поляризация</kwd><kwd>двулучепреломляющий кристалл</kwd></kwd-group><kwd-group xml:lang="en"><kwd>phase masks</kwd><kwd>geometric phase elements</kwd><kwd>laser beams</kwd><kwd>polarization</kwd><kwd>birefringent crystals</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>работа поддержана Российским научным фондом [проект № 20-71-10103].</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">Liu Z., Yao X., Cheng X., Wu H., Wang H., Shen H. Experimental study on two-phase boiling in wavy copper microchannels fabricated with ultrafast laser micromachining // J. Micromech. Microeng. 2020. 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