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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">Photonics Russia</journal-id><journal-title-group><journal-title xml:lang="en">Photonics Russia</journal-title><trans-title-group xml:lang="ru"><trans-title>Фотоника</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1993-7296</issn><issn publication-format="electronic">2686-844X</issn><publisher><publisher-name xml:lang="en">Technosphera JSC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">698551</article-id><article-id pub-id-type="doi">10.22184/1993-7296.FRos.2025.19.7.578.586</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Materials and Coatings</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Материалы и покрытия</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">Diamond UV detector with graphite electrodes formed by laser ablation</article-title><trans-title-group xml:lang="ru"><trans-title>УФ-детектор на алмазе с графитовыми электродами, сформированными лазерной абляцией</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2213-4224</contrib-id><name-alternatives><name xml:lang="en"><surname>Ralchenko</surname><given-names>Viktor G.</given-names></name><name xml:lang="ru"><surname>Ральченко</surname><given-names>Виктор Григорьевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand.of Sc.(Phys.&amp;Math.), Head of the Diamond Materials Laboratory, Natural Sciences Center</p></bio><bio xml:lang="ru"><p>к. ф.- м. н., зав. лабораторией алмазных материалов Центра естественно-научных исследований (ЦЕНИ)</p></bio><email>vg_ralchenko@mail.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/0000-0002-9257-804X</contrib-id><name-alternatives><name xml:lang="en"><surname>Pashinin</surname><given-names>Vladimir P.</given-names></name><name xml:lang="ru"><surname>Пашинин</surname><given-names>Владимир Павлович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Researcher, Surface Laser Optics Laboratory, Natural Sciences Center</p></bio><bio xml:lang="ru"><p>научн. сотр., лаборатория лазерной оптики поверхности ЦЕНИ</p></bio><email>vppashinin@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1389-5697</contrib-id><name-alternatives><name xml:lang="en"><surname>Popovich</surname><given-names>Alexey F.</given-names></name><name xml:lang="ru"><surname>Попович</surname><given-names>Алексей Федорович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Engineer, Senior Engineer, Diamond Materials Laboratory, Natural Sciences Center</p></bio><bio xml:lang="ru"><p>инженер, лаборатория алмазных материалов ЦЕНИ</p></bio><email>lex78@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9190-5766</contrib-id><name-alternatives><name xml:lang="en"><surname>Bolshakov</surname><given-names>Andrey P.</given-names></name><name xml:lang="ru"><surname>Большаков</surname><given-names>Андрей Петрович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand.of Sc.(Phys.&amp;Math.), Senior Researcher, Diamond Materials Laboratory, Natural Sciences Center</p></bio><bio xml:lang="ru"><p>к. ф.- м. н., с. н. с., лаборатория алмазных материалов ЦЕНИ</p></bio><email>bolshak3@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3196-5695</contrib-id><name-alternatives><name xml:lang="en"><surname>Martyanov</surname><given-names>Artem K.</given-names></name><name xml:lang="ru"><surname>Мартьянов</surname><given-names>Артем Константинович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand.of Sc.(Phys.&amp;Math.), Senior Researcher, Diamond Materials Laboratory, Natural Sciences Center</p></bio><bio xml:lang="ru"><p>к. ф.- м. н., с. н. с., лаборатория алмазных материалов ЦЕНИ</p></bio><email>art.martyanov@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3144-714X</contrib-id><name-alternatives><name xml:lang="en"><surname>Zakharchenko</surname><given-names>Kirill V.</given-names></name><name xml:lang="ru"><surname>Захарченко</surname><given-names>Кирилл Викторович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand.of Sc.(Phys.&amp;Math.), Researcher, Diamond Materials Laboratory, Natural Sciences Center, Associate Professor, Department of Physics</p></bio><bio xml:lang="ru"><p>к. ф.- м. н., н. с., лаборатория алмазных материалов ЦЕНИ, доцент кафедры физики </p></bio><email>nanophys@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1135-5566</contrib-id><name-alternatives><name xml:lang="en"><surname>Konov</surname><given-names>Vitaly I.</given-names></name><name xml:lang="ru"><surname>Конов</surname><given-names>Виталий Иванович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr.of Sc.(Phys.&amp;Math.), acad. RAS, Head of the Natural Sciences Center</p></bio><bio xml:lang="ru"><p>д. ф.- м. н., акад. РАН, руководитель Центра естественно-научных исследований (ЦЕНИ)</p></bio><email>vik@nsc.gpi.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1170-4084</contrib-id><name-alternatives><name xml:lang="en"><surname>Dai</surname><given-names>Bing</given-names></name><name xml:lang="ru"><surname>Дай</surname><given-names>Бин</given-names></name></name-alternatives><address><country country="CN">China</country></address><bio xml:lang="en"><p>Cand.of Sc.(Phys.&amp;Math.), Assistant Prof.</p></bio><bio xml:lang="ru"><p>к. ф.- м. н., доцент</p></bio><email>daibinghit@vip.126.com</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Prokhorov General Physics Institute of the RAS</institution></aff><aff><institution xml:lang="ru">Институт общей физики им. А. М. Прохорова РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Harbin Institute of Technology</institution></aff><aff><institution xml:lang="ru">Харбинский технологический институт</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Kotel’nikov Institute of Radio Engineering and Electronics of the RAS</institution></aff><aff><institution xml:lang="ru">Институт радиотехники и электроники им. В. А. Котельникова РАН</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Moscow State Technical University of Civil Aviation</institution></aff><aff><institution xml:lang="ru">Московский государственный технический университет гражданской авиации</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2025</year></pub-date><volume>19</volume><issue>7</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>578</fpage><lpage>586</lpage><history><date date-type="received" iso-8601-date="2025-12-12"><day>12</day><month>12</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Ralchenko V.G., Pashinin V.P., Popovich A.F., Bolshakov A.P., Martyanov A.K., Zakharchenko K.V., Konov V.I., Dai B.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Ральченко В.Г., Пашинин В.П., Попович А.Ф., Большаков А.П., Мартьянов А.К., Захарченко К.В., Конов В.И., Дай Б.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Ralchenko V.G., Pashinin V.P., Popovich A.F., Bolshakov A.P., Martyanov A.K., Zakharchenko K.V., Konov V.I., Dai B.</copyright-holder><copyright-holder xml:lang="ru">Ральченко В.Г., Пашинин В.П., Попович А.Ф., Большаков А.П., Мартьянов А.К., Захарченко К.В., Конов В.И., Дай Б.</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/1993-7296/article/view/698551">https://journals.eco-vector.com/1993-7296/article/view/698551</self-uri><abstract xml:lang="en"><p>A Diamond being a wide-bandgap radiation-hard semiconductor, is rather promising for the development of UV detectors, including the solar-blind ones. A version of an all-carbon UV detector has been implemented on a single-crystal CVD diamond wafer with the interdigital electrodes consisting of a system of shallow (near-surface) and deep graphitized grooves produced by laser ablation without any lithography. Simulation of the electric field distribution in the detector has demonstrated the advantage of using buried electrodes that provide a more uniform field distribution within the crystal. The photosensitivity spectra exhibit a sharp peak at 220 nm, with the buried electrodes providing a 75% higher response amplitude (14 A/W).</p></abstract><trans-abstract xml:lang="ru"><p>Алмаз, широкозонный радиационно-стойкий полупроводник, перспективен для создания детекторов УФ излучения, в том числе «солнечно-слепых». Реализован вариант полностью углеродного УФ-детектора на монокристальной пластине CVD алмаза со встречно-штыревыми электродами в виде системы мелких (приповерхностных) и глубоких графитизированных канавок, полученных лазерной абляцией без применения литографии. Моделирование распределения электрического поля в детекторе показало преимущество использования заглубленных электродов, которые обеспечивают более однородное распределение поля в кристалле. Спектры фоточувствительности демонстрируют острый максимум в области длин волн 220 нм, причем для заглубленных электродов амплитуда отклика на 75% выше (14 А / Вт).</p></trans-abstract><kwd-group xml:lang="en"><kwd>diamond</kwd><kwd>UV detector</kwd><kwd>laser ablation</kwd><kwd>graphitization</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>алмаз</kwd><kwd>УФ-детектор</kwd><kwd>лазерная абляция</kwd><kwd>графитизация</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This paper has been supported by the Russian Science Foundation, grant No. 23-42-00120 and the National Natural Science Foundation of China, grant No. 52261135545</funding-statement><funding-statement xml:lang="ru">Работа выполнена при поддержке Российского научного фонда, грант № 23-42-00120 и Национального Фонда естественных наук КНР, грант № 52261135545</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Shimaoka T., Koizumi S., Kaneko J. 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