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Author | Смирнов, Константин Владимирович; Чулкова, Галина Меркурьевна; Вахтомин, Юрий Борисович; Корнеев, Александр Александрович; Окунев, Олег Валерьевич; Дивочий, Александр Валерьевич; Семенов, Александр Владимирович; Гольцман, Григорий Наумович | ||||
Title | Особенности разогрева и релаксации горячих электронов О-754 в тонкопленочных cверхпроводниковых наноструктурах и 2D полупроводниковых гетероструктурах при поглощении излучения инфракрасного и терагерцового диапазонов | Type | Book Whole | ||
Year | 2014 | Publication | Abbreviated Journal | ||
Volume | Issue | Pages | |||
Keywords | 2DEG | ||||
Abstract | В монографии рассмотрены основные особенности эффекта электронного разогрева в тонких сверхпроводниковых пленках и полупроводниковых гетеропереходах, возникающего при поглощении носителями заряда излучений терагерцового и инфракрасного диапазонов. Значительная часть монографии посвящена представлению современных достижений при использовании указанного эффекта для создания приемных устройств с рекордными характеристиками: терагерцовых гетеродинных и болометрических приемников на основе сверхпроводниковых и полупроводниковых структур; сверхпроводниковых приемников одиночных ИК фотонов. В работе также подробно рассмотрены основы современной сверхпроводниковой тонкопленочной технологии. Монография может быть полезна студентам старших курсов, аспирантам и начинающим исследователям, работающим в области физики твердого тела, оптики, радиофизики. |
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Address | Москва | ||||
Corporate Author | Thesis | ||||
Publisher | МПГУ | Place of Publication | Editor | ||
Language | Russian | Summary Language | Original Title | ||
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Series Volume | Series Issue | Edition | |||
ISSN | ISBN | 978-5-4263-0145-0 | Medium | ||
Area | Expedition | Conference | |||
Notes | 240 страниц | Approved | no | ||
Call Number | Serial | 1814 | |||
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Author | Гольцман, Григорий Наумович; Корнеев, Александр Александрович; Антипов, Андрей Владимирович; Минаева, Ольга Вячеславовна; Дивочий, Александр Валерьевич; Антипов, Сергей Владимирович; Вахтомин, Юрий Борисович; Смирнов, Константин Владимирович | ||||
Title | Способ фильтрации фонового излучения инфракрасного диапазона | Type | Patent | ||
Year | 2014 | Publication | Abbreviated Journal | ||
Volume | Issue | RU 2510056 C1 | Pages | ||
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Abstract | Изобретение относится к способам уменьшения интенсивности фонового излучения инфракрасного диапазона. Способ фильтрации фонового излучения инфракрасного диапазона, падающего на сверхпроводниковый однофотонный детектор, включает передачу излучения инфракрасного диапазона с длиной волны 0,4-1,8 микрометров на сверхпроводниковый однофотонный детектор при помощи одномодового волокна, частично находящегося при температуре 4,0-4,4 К. При этом длина охлаждаемого участка одномодового волокна составляет 0,2-3,5 м. Технический результат заключается в повышении надежности работы фотонных детекторов. 2 з.п. ф-лы. | ||||
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Notes | Approved | no | |||
Call Number | Serial | 1815 | |||
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Author | Антипов, Андрей Владимирович; Дивочий, Александр Валерьевич; Вахтомин, Юрий Борисович; Финкель, Матвей Ильич; Смирнов, Константин Владимирович | ||||
Title | Способ прецизионного позиционирования чувствительного элемента фотонного детектора | Type | Patent | ||
Year | 2014 | Publication | Abbreviated Journal | ||
Volume | Issue | RU 2506664 C1 | Pages | ||
Keywords | |||||
Abstract | Изобретение относится к способам, позволяющим производить совмещение фотонных детекторов относительно оптического излучения. Способ прецизионного позиционирования чувствительного элемента фотонного детектора относительно амплитудно-модулированного оптического излучения включает смещение чувствительного элемента фотонного детектора постоянным током с последующей регистрацией электрического сигнала, возникающего на контактах детектора на частоте модуляции излучения. Полученный при этом сигнал используют как параметр, определяющий качество позиционирования. Обеспечивается повышение технико-эксплуатационных характеристик детектора. | ||||
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Notes | Approved | no | |||
Call Number | Serial | 1816 | |||
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Author | Irimajiri, Y.; Kumagai, M.; Morohashi, I.; Kawakami, A.; Nagano, S.; Sekine, N.; Ochiai, S.; Tanaka, S.; Hanado, Y.; Uzawa, Y.; Hosako, I. | ||||
Title | Phase-locking of a THz-QCL using a Low Noise HEB mixer, and a Frequency-comb as a Reference | Type | Conference Article | ||
Year | 2014 | Publication | 39th Int. Conf. IRMMW-THz | Abbreviated Journal | 39th Int. Conf. IRMMW-THz |
Volume | Issue | Pages | 1-2 | ||
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Abstract | We have developed a phase-locking system of a 3.1THz QCL (Quantum Cascade Laser) using a low noise hot electron bolometer mixer (HEBM) and a THz reference. The THz reference was generated by photomixing two optical modes of a frequency comb. The THz-QCL and HEBM devices are fabricated in our laboratory. A line width of the phase-locked QCL of narrower than 1Hz was achieved. | ||||
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ISSN | ISBN | 978-1-4799-3877-3 | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | RPLAB @ atomics90 @ | Serial | 969 | ||
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Author | Averkin, A. S.; Shishkin, A. G.; Chichkov, V. I.; Voronov, B. M.; Goltsman, G. N.; Karpov, A.; Ustinov, A. V. | ||||
Title | Tunable frequency-selective surface based on superconducting split-ring resonators | Type | Conference Article | ||
Year | 2014 | Publication | 8th Metamaterials | Abbreviated Journal | 8th Metamaterials |
Volume | Issue | Pages | |||
Keywords | superconducting split-ring resonators | ||||
Abstract | We study a possibility to use the 2D superconducting metamaterial as a tunable frequency-selective surface (FSS). The proposed FSS is made of sub-wavelength size (l/14) metamaterial unit cells, where a split-ring resonator is embedded in a small iris aperture in a metal plane. The split-ring resonator is made of NbN film, and its resonance frequency is tuned by the temperature of the sample, changing the kinetic inductance of NbN film. The Ansoft HFSS simulation predicts the FSS tuning range of about 10-20 %. The developed superconducting FSS may be used as a tunable band-pass filter or modulator. | ||||
Address | Copenhagen, Denmark | ||||
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Area | Expedition | Conference | 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics – Metamaterials | ||
Notes | Approved | no | |||
Call Number | Serial | 1749 | |||
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Author | Bennett, Douglas A.; Schmidt, Daniel R.; Swetz, Daniel S.; Ullom, Joel N. | ||||
Title | Phase-slip lines as a resistance mechanism in transition-edge sensors | Type | Journal Article | ||
Year | 2014 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
Volume | 104 | Issue | Pages | 042602 | |
Keywords | microbolometers, TES, phase-slip lines, PSL | ||||
Abstract | The fundamental mechanism of resistance in voltage-biased superconducting films is poorly understood despite its importance as the basis of transition-edge sensors (TESs). TESs are utilized in state-of-the-art microbolometers and microcalorimeters covering a wide range of energies and applications. We present a model for the resistance of a TES based on phase-slip lines (PSLs) and compare the model to data. One of the model's predictions, discrete changes in the number of PSLs, is a possible explanation for the observed switching between discrete current states in localized regions of bias. | ||||
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Notes | Recommended by Klapwijk | Approved | no | ||
Call Number | Serial | 929 | |||
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Author | Miao, W.; Zhang, W.; Zhong, J. Q.; Shi, S. C.; Delorme, Y.; Lefevre, R.; Feret, A; Vacelet, T | ||||
Title | Non-uniform absorption of terahertz radiation on superconducting hot electron bolometer microbridges | Type | Journal Article | ||
Year | 2014 | Publication | Appl. Phys. Lett. | Abbreviated Journal | <ef><bf><bc>Appl. Phys. Lett. |
Volume | 104 | Issue | Pages | 052605(1-4) | |
Keywords | NbN HEB mixers, local oscillator power, RF nonuniform absorption | ||||
Abstract | We interpret the experimental observation of a frequency-dependence of superconducting hot electron bolometer (HEB) mixers by taking into account the non-uniform absorption of the terahertz radiation on the superconducting HEB microbridge. The radiation absorption is assumed to be proportional to the local surface resistance of the HEB microbridge, which is computed using the Mattis-Bardeen theory. With this assumption the dc and mixing characteristics of a superconducting niobium-nitride (NbN) HEB device have been modeled at frequencies below and above the equilibrium gap frequency of the NbN film. | ||||
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Notes | Approved | no | |||
Call Number | Serial | 935 | |||
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Author | Bueno, J.; Coumou, P. C. J. J.; Zheng, G.; de Visser, P. J.; Klapwijk, T. M.; Driessen, E. F. C.; Doyle, S.; Baselmans, J. J. A | ||||
Title | Anomalous response of superconducting titanium nitride resonators to terahertz radiation | Type | Journal Article | ||
Year | 2014 | Publication | Appl. Phys. Lett. | Abbreviated Journal | |
Volume | 105 | Issue | Pages | 192601 (1 to 5) | |
Keywords | KID, TiN, NEP, disordered superconductors, inhomogeneous state | ||||
Abstract | We present an experimental study of kinetic inductance detectors (KIDs) fabricated of atomic layer deposited TiN films and characterized at radiation frequencies of 350 GHz. The responsivity to radiation is measured and found to increase with the increase in radiation powers, opposite to what is expected from theory and observed for hybrid niobium titanium nitride/aluminium (NbTiN/Al) and all-aluminium (all-Al) KIDs. The noise is found to be independent of the level of the radiation power. The noise equivalent power improves with higher radiation powers, also opposite to what is observed and well understood for hybrid NbTiN/Al and all-Al KIDs. We suggest that an inhomogeneous state of these disordered superconductors should be used to explain these observations. | ||||
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Notes | Approved | no | |||
Call Number | Serial | 1068 | |||
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Author | Maslennikov, S. | ||||
Title | RF heating efficiency of the terahertz superconducting hot-electron bolometer | Type | Journal Article | ||
Year | 2014 | Publication | arXiv | Abbreviated Journal | arXiv |
Volume | 1404.5276 | Issue | Pages | 1-4 | |
Keywords | superconducting hot-electron bolometer mixer, HEB, NbN, distributed model, HEB model, HEB mixer model, heat balance equa-tions, conversion gain, RF heating efficiency, noise temperature, simulation, Euler method | ||||
Abstract | We report results of the numerical solution by the Euler method of the system of heat balance equations written in recurrent form for the superconducting hot-electron bolometer (HEB) embedded in an electrical circuit. By taking into account the dependence of the HEB resistance on the transport current we have been able to calculate rigorously the RF heating efficiency, absorbed local oscillator (LO) power and conversion gain of the HEB mixer. We show that the calculated conversion gai nis in excellent agreement with the experimental results, and that the substitution of the calculated RF heating efficiency and absorbed LO power into the expressions for the conversion gain and noise temperature given by the analytical small-signal model of the HEB yields excellent agreement with the corresponding measured values | ||||
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Notes | Approved | no | |||
Call Number | RPLAB @ atomics90 @ | Serial | 954 | ||
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Author | Murphy, A.; Semenov, A.; Korneev, A.; Korneeva, Y.; Gol’tsman, G.; Bezryadin, A. | ||||
Title | Dark counts initiated by macroscopic quantum tunneling in NbN superconducting photon detectors | Type | Miscellaneous | ||
Year | 2014 | Publication | arXiv | Abbreviated Journal | |
Volume | Issue | Pages | |||
Keywords | NbN SSPD | ||||
Abstract | We perform measurements of the switching current distributions of three w = 120 nm wide, 4 nm thick NbN superconducting strips which are used for single-photon detectors. These strips are much wider than the diameter the vortex cores, so they are classified as quasi-two-dimensional (quasi-2D). We discover evidence of macroscopic quantum tunneling by observing the saturation of the standard deviation of the switching distributions at temperatures around 2 K. We analyze our results using the Kurkijarvi-Garg model and find that the escape temperature also saturates at low temperatures, confirming that at sufficiently low temperatures, macroscopic quantum tunneling is possible in quasi-2D strips and can contribute to dark counts observed in single photon detectors. | ||||
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Notes | Approved | no | |||
Call Number | murphy2014dark | Serial | 1356 | ||
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