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Author Kovalyuk, V.; Hartmann, W.; Kahl, O.; Kaurova, N.; Korneev, A.; Goltsman, G.; Pernice, W. H. P.
Title Absorption engineering of NbN nanowires deposited on silicon nitride nanophotonic circuits Type Journal Article
Year 2013 Publication Opt. Express Abbreviated Journal Opt. Express
Volume 21 Issue 19 Pages 22683-22692
Keywords SSPD, SNSPD, NbN nanoeires, Si3N4 waveguides
Abstract We investigate the absorption properties of U-shaped niobium nitride (NbN) nanowires atop nanophotonic circuits. Nanowires as narrow as 20nm are realized in direct contact with Si3N4 waveguides and their absorption properties are extracted through balanced measurements. We perform a full characterization of the absorption coefficient in dependence of length, width and separation of the fabricated nanowires, as well as for waveguides with different cross-section and etch depth. Our results show excellent agreement with finite-element analysis simulations for all considered parameters. The experimental data thus allows for optimizing absorption properties of emerging single-photon detectors co-integrated with telecom wavelength optical circuits.
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1094-4087 ISBN Medium
Area Expedition Conference
Notes (up) PMID:24104155 Approved no
Call Number Serial 1213
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Author Zolotov, P.; Vakhtomin, Yu.; Divochiy, A.; Seleznev, V.; Morozov, P.; Smirnov, K.
Title High-efficiency single-photon detectors based on NbN films Type Miscellaneous
Year 2013 Publication Abbreviated Journal
Volume Issue Pages
Keywords SSPD, SNSPD
Abstract We present our resent results in development and testing of Superconducting Single-Photon Detectors (SSPD) with detection efficiencies greater than 85%. High values of obtained results are assigned to proposed design of the detector with integrated resonator structure, including two-layer optical cavity and anti-reflective coating (ARC).
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes (up) Poster Approved no
Call Number Serial 1254
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Author Омельянук, А. Н.; Ильичев, Е. В.; Шевченко, С. Н.
Title Квантовые когерентные явления в джозефсоновских кубитах Type Book Whole
Year 2013 Publication Наукова думка Abbreviated Journal
Volume Issue Pages
Keywords Josephson qubit, quantum computer, Rabi cycle, Landau-Zener effect, multiphoton transitions, single qubits
Abstract Монография посвящена актуальным проблемам физики сверхпроводниковых джозефсоновских кубитов — макроскопических квантовых структур, перспективных элементов квантовых компьютеров. Приведены элементы квантовой механики кубитов, фундаментальные свойства сверхпроводников, физика классических и квантовых джозефсоновских структур. Рассмотрены основные типы сверхпроводниковых кубитов. Изложены результаты экспериментальных и теоретических исследований квантовых когерентных явлений в джозефсоновских кубитах. Рассмотрены спектроскопия энергетиче­ских состояний, осцилляции Раби, эффект Ландау-Зинера, многофотонные переходы в одиночних кубитах и в системах связанных кубитов. Изучено влияние шумов на потоковый кубит и на его классический аналог.

Для специалистов в области теоретической и прикладной физики, сверхпроводниковой микроэлектроники, а также аспирантов и студентов физико-технических специальностей.
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Publisher ФТИНТ им. Б. И. Верника НАН Украины Place of Publication Киев Editor
Language Russian Summary Language Original Title
Series Editor Series Title Наукова книга Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN 978-966-00-1260-8 Medium
Area Expedition Conference
Notes (up) Ссылку прислал Саша Семенов в [RpL 755]. Approved no
Call Number Serial 933
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