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Елезов, М. С.; Щербатенко, М. Л.; Сыч, Д. В.; Гольцман, Г. Н. |
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Практические особенности работы оптоволоконного квантового приемника Кеннеди |
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Conference Article |
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2019 |
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Proc. IWQO |
Abbreviated Journal |
Proc. IWQO |
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303-305 |
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Kennedy quantum receiver, fiber, quantum optics, standard quantum limit, superconducting nanowire single-photon detector, coherent detection |
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Abstract |
Мы рассматриваем практические особенности работы квантового приемника на основе схемы Кеннеди, собранного из стандартных оптоволоконных элементов и сверхпроводникового детектора одиночных фотонов. Приемник разработан для различения двух фазовомодулированных когерентных состояний света на длине волны 1,5 микрона в непрерывном режиме с частотой модуляции 200 КГц и уровнем ошибок различения примерно в два раза ниже стандартного квантового предела. |
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Russian |
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Duplicated as 1288 |
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1283 |
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Елманов, И. А.; Елманова, А. В.; Голиков, А. Д.; Комракова, С. А.; Каурова, Н. С.; Ковалюк, В. В.; Гольцман, Г. Н. |
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Способ определения параметров резистов для электронной литографии фотонных интегральных схем на платформе нитрида кремния |
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Conference Article |
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2019 |
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Proc. IWQO |
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Proc. IWQO |
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306-308 |
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Si3N4, e-beam lithography, EBL |
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В работе были измерены толщины резистов ZEP 520A и ma-N 2400 для электронно-лучевой литографии, неразрушающим способом, а также подобран рецепт, обеспечивающий высокое отношение скорости травления нитрида кремния по сравнению с резистом. Работа имеет практическое значение для электронной литографии интегрально-оптических устройств и устройств нанофотоники на основе нитрида кремния. |
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Duplicated as 1189 |
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1284 |
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Елманова, А.; Елманов, И.; Комракова, С.; Голиков, А.; Джавадзадэ, Д.; Воробьёв, В.; Большедворский, С.; Сошенко, В.; Акимов, А.; Ковалюк, В.; Гольцман, Г. |
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Способ интеграции наноалмазов с нанофотонными устройствами из нитрида кремния |
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Conference Article |
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2019 |
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Proc. IWQO |
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Proc. IWQO |
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309-311 |
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nanodiamonds, NV-centers |
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В работе были разработаны оптические структуры из нитрида кремния для дальнейшего размещения на них наноалмазов с NV-центрами, опробованы различные методики нанесения раствора наноалмазов и выбрана оптимальная. Работа имеет практическое значение в области нанофотоники и создании квантово-оптических устройств с однофотонными источниками. |
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Duplicated as 1190 |
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1285 |
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Goltsman, G. |
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Title |
Quantum-photonic integrated circuits |
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Conference Article |
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2019 |
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Proc. IWQO |
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Proc. IWQO |
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22-23 |
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WSSPD, waveguide SSPD, SNSPD, quantum optics, integrated optics, superconducting nanowire single-photon detector |
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We show the design, a history of development as well as the most successful and promising approaches for QPICs realization based on hybrid nanophotonic-superconducting devices, where one of the key elements of such a circuit is a waveguide integrated superconducting single-photon detector (WSSPD). The potential of integration with fluorescent molecules is discussed also. |
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1287 |
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Bandurin, Denis; Svintsov, Dmitry; Gayduchenko, Igor; Xu, Shuigang; Principi, Alessandro; Moskotin, Maksim; Tretyakov, Ivan; Yagodkin, Denis; Zhukov, Sergey; Taniguchi, Takashi; Watanabe, Kenji; Grigorieva, Irina; Polini, Marco; Goltsman, Gregory; Geim, Andre; Fedorov, Georgy |
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Title |
Resonant terahertz photoresponse and superlattice plasmons in graphene field-effect transistors |
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Abstract |
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2019 |
Publication |
APS March Meeting |
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APS March Meeting |
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F14.015 |
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Plasmons, collective oscillations of electron systems, can couple light and electric current, and thus can be used to create compact photodetectors, radiation mixers, and spectrometers. Despite the effort, it has proven challenging to implement plasmonic devices operating at THz frequencies. The material capable to meet this challenge is graphene as it supports long-lived electrically-tunable plasmons. In this talk, we will demonstrate plasmon-assisted resonant detection of THz radiation by antenna-coupled graphene FETs that act as both rectifying elements and plasmonic Fabry-Perot cavities amplifying the photoresponse. We will show that by varying the plasmon velocity using gate voltage, our detectors can be tuned between multiple resonant modes, a functionality that we apply to measure plasmons' wavelength and lifetime in graphene as well as to probe collective modes in its moire minibands. Our approach offers a convenient tool for further plasmonic research that is often difficult under non-ambient conditions and promises a viable route for various THz applications. We acknowledge Leverhulme Trust, Russian Science Foundation Grants N18-72-00234 and 17-72-30036, Russian Foundation for Basic Research No. 18-57-06001 and 16-29-03402. |
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