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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Nanoindustry</journal-id><journal-title-group><journal-title xml:lang="en">Nanoindustry</journal-title><trans-title-group xml:lang="ru"><trans-title>Наноиндустрия</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1993-8578</issn><issn publication-format="electronic">2687-0282</issn><publisher><publisher-name xml:lang="en">Technosphera JSC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">697251</article-id><article-id pub-id-type="doi">10.22184/1993-8578.2025.18.7-8.420.431</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Equipment for Nanoindustry</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оборудование для наноиндустрии</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Development of a micro-opto-mechanical pressure sensor based on the Mach-Zehnder interferometer</article-title><trans-title-group xml:lang="ru"><trans-title>Разработка микрооптомеханического датчика давления на основе интерферометра Маха-Цендера</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2632-898X</contrib-id><name-alternatives><name xml:lang="en"><surname>Saurov</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Сауров</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Junior Researcher</p></bio><bio xml:lang="ru"><p>м.н.с.</p></bio><email>D.Gorelov@tcen.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0887-9406</contrib-id><name-alternatives><name xml:lang="en"><surname>Gorelov</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Горелов</surname><given-names>Д. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Senior Researcher</p></bio><bio xml:lang="ru"><p>с.н.с.</p></bio><email>D.Gorelov@tcen.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7960-1583</contrib-id><name-alternatives><name xml:lang="en"><surname>Kadochkin</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Кадочкин</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. of Sci. (Physics and Mathematics), Senior Researcher</p></bio><bio xml:lang="ru"><p>к.ф.-м.н., с.н.с.</p></bio><email>D.Gorelov@tcen.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0831-9254</contrib-id><name-alternatives><name xml:lang="en"><surname>Svetukhin</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Светухин</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Doct. of Sci. (Physics and Mathematics), Director, Corresponding Member of RAS</p></bio><bio xml:lang="ru"><p>д.ф.-м.н, проф., чл.-корр. РАН, дир.</p></bio><email>D.Gorelov@tcen.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Scientific-Manufacturing Complex "Technological Centre"</institution></aff><aff><institution xml:lang="ru">НПК "Технологический центр"</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">National Research University of Electronic Technology (MIET)</institution></aff><aff><institution xml:lang="ru">Национальный исследовательский университет "МИЭТ"</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-12-10" publication-format="electronic"><day>10</day><month>12</month><year>2025</year></pub-date><volume>18</volume><issue>7-8</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>420</fpage><lpage>431</lpage><history><date date-type="received" iso-8601-date="2025-12-01"><day>01</day><month>12</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Saurov M.A., Gorelov D.V., Kadochkin A.S., Svetukhin V.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Сауров М.А., Горелов Д.В., Кадочкин А.С., Светухин В.В.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Saurov M.A., Gorelov D.V., Kadochkin A.S., Svetukhin V.V.</copyright-holder><copyright-holder xml:lang="ru">Сауров М.А., Горелов Д.В., Кадочкин А.С., Светухин В.В.</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/1993-8578/article/view/697251">https://journals.eco-vector.com/1993-8578/article/view/697251</self-uri><abstract xml:lang="en"><p>In this paper shows the possibility of creating sensitive elements based on integrated optical technology and MEMS structures. A prototype of a pressure sensor operating on the principle of optical interference is presented. The sensor’s sensing element is based on a Mach-Zehnder interferometer, one of the arms of which is located on a deformable membrane. The optical scheme of the interferometer is implemented on Si<sub>3</sub>N<sub>4</sub> integrated waveguides. In the course of the study, a theoretical assessment of the effect of membrane deformation on waveguide geometry was performed. The calculations performed were tested during experimental studies of models of a micro-opto-mechanical pressure sensor with different configurations of the interferometer arms. As a result of the research, a technological basis for integrated optical sensors based on silicon nitride waveguides and MEMS technology for the formation of membranes on silicon substrates has been developed.</p></abstract><trans-abstract xml:lang="ru"><p>В работе показана возможность создания чувствительных элементов на основе интегрально-оптической технологии и МЭМС-структур. Представлен прототип датчика давления, работающего на принципе оптической интерференции. Чувствительный элемент датчика основан на интерферометре Маха-Цендера, одно из плеч которого располагается на деформируемой мембране. Оптическая схема интерферометра реализована на интегральных волноводах из Si<sub>3</sub>N<sub>4</sub>. В ходе исследования выполнена теоретическая оценка влияния деформации мембраны на геометрию волновода. Проведенные расчеты были апробированы в ходе экспериментальных исследований макетов микрооптомеханического датчика давления с различной конфигурацией плеч интерферометра. В результате исследований разработан технологический базис интегрально-оптических датчиков на основе нитрид-кремниевых волноводов и МЭМС-технологии по формированию мембран на кремниевых подложках.</p></trans-abstract><kwd-group xml:lang="en"><kwd>micro-opto-mechanical pressure sensor</kwd><kwd>MEMS technology</kwd><kwd>Mach-Zehnder interferometer</kwd><kwd>phase delay</kwd><kwd>interference</kwd><kwd>integrated waveguide</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>микрооптический датчик давления</kwd><kwd>МЭМС технология</kwd><kwd>интерферометр Маха-Цендера</kwd><kwd>фазовая задержка</kwd><kwd>интерференция</kwd><kwd>интегральный волновод</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was financially supported by the Ministry of Science and Higher Education of the Russian Federation (FNRM-2025-0012)</funding-statement><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Министерства науки и высшего образования РФ в рамках научной темы FNRM-2025-0012</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Padron I., Fiory A.T., Ravindra N.M. 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