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Gol’tsman, G. N.; Smirnov, K. V. |
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Title |
Electron-phonon interaction in a two-dimensional electron gas of semiconductor heterostructures at low temperatures |
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Journal Article |
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2001 |
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Jetp Lett. |
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Jetp Lett. |
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74 |
Issue  |
9 |
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474-479 |
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2DEG, AlGaAs/GaAs heterostructures |
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Theoretical and experimental works devoted to studying electron-phonon interaction in the two-dimensional electron gas of semiconductor heterostructures at low temperatures in the case of strong heating in an electric field under quasi-equilibrium conditions and in a quantizing magnetic field perpendicular to the 2D layer are considered. |
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0021-3640 |
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По итогам проектов российского фонда фундаментальных исследований. Проект РФФИ # 98-02-16897 Электрон-фононное взаимодействие в двумерном электронном газе полупроводниковых гетероструктур при низких температурах |
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1541 |
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Tong, C. E.; Blundell, R.; Papa, D. C.; Smith, M.; Kawamura, J.; Gol'tsman, G.; Gershenzon, E.; Voronov, B. |
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Title |
An all solid-state superconducting heterodyne receiver at terahertz frequencies |
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Journal Article |
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1999 |
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IEEE Microw. Guid. Wave Lett. |
Abbreviated Journal |
IEEE Microw. Guid. Wave Lett. |
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Volume |
9 |
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9 |
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366-368 |
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waveguide NbN HEB mixers |
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A superconducting hot-electron bolometer mixer-receiver operating from 1 to 1.26 THz has been developed. This heterodyne receiver employs two solid-state local oscillators each consisting of a Gunn oscillator followed by two stages of varactor frequency multiplication. The measured receiver noise temperature is 1350 K at 1.035 THz and 2700 K at 1.26 THz. This receiver demonstrates that tunable solid-state local oscillators, supplying only a few micro-watts of output power, can be used in terahertz receiver applications. |
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1051-8207 |
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1565 |
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Гершензон, Е. М.; Семенов, И. Т.; Фогельсон, М. С. |
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Спин-решеточная релаксация доноров фосфора в кремнии при одноосной деформации образца |
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1985 |
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Физика и техника полупроводников |
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Физика и техника полупроводников |
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19 |
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9 |
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1696-1698 |
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uniaxial pressure, Ge, phosphorus donors, spin-lattice relaxation |
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1760 |
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Shein, K. V.; Zarudneva, A. A.; Emel’yanova, V. O.; Logunova, M. A.; Chichkov, V. I.; Sobolev, A.S.; Zav’yalov, V. V.; Lehtinen, J. S.; Smirnov, E. O.; Korneeva, Y. P.; Korneev, A. A.; Arutyunov, K. Y. |
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Superconducting microstructures with high impedance |
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Journal Article |
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2020 |
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Phys. Solid State |
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Phys. Solid State |
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62 |
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9 |
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1539-1542 |
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superconducting channels, SIS, inetic inductance, tunneling contacts, high impedance |
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The transport properties of two types of quasi-one-dimensional superconducting microstructures were investigated at ultra-low temperatures: the narrow channels close-packed in the shape of meander, and the chains of tunneling contacts “superconductor-insulator-superconductor.” Both types of the microstructures demonstrated high value of high-frequency impedance and-or the dynamic resistance. The study opens up potential for using of such structures as current stabilizing elements with zero dissipation. |
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1063-7834 |
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1789 |
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Гольцман, Г. Н.; Смирнов, К. В. |
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По итогам проектов российского фонда фундаментальных исследований. Проект РФФИ # 98-02-16897 Электрон-фононное взаимодействие в двумерном электронном газе полупроводниковых гетероструктур при низких температурах |
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2001 |
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Письма в ЖЭТФ |
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Письма в ЖЭТФ |
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74 |
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9 |
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532-538 |
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2DEG, AlGaAs/GaAs heterostructures |
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Рассмотрены теоретические и экспериментальные работы, посвященные изучению электрон-фононного взаимодействия в двумерном электронном газе полупроводниковых гетероструктур при низких температурах в случае сильного разогрева в электрическом поле, в квазиравновесных условиях и в квантующем магнитном поле, перпендикулярном 2D слою. |
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Duplicated as 1541: “Electron-phonon interaction in a two-dimensional electron gas of semiconductor heterostructures at low temperatures” |
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1832 |
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Verevkin, A.; Pearlman, A.; Slysz, W.; Zhang, J.; Currie, M.; Korneev, A.; Chulkova, G.; Okunev, O.; Kouminov, P.; Smirnov, K.; Voronov, B.; Gol'tsman, G. N.; Sobolewski, R. |
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Ultrafast superconducting single-photon detectors for near-infrared-wavelength quantum communications |
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Journal Article |
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2004 |
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J. Modern Opt. |
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J. Modern Opt. |
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51 |
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9-10 |
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1447-1458 |
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NbN SSPD, SNSPD |
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The paper reports progress on the design and development of niobium-nitride, superconducting single-photon detectors (SSPDs) for ultrafast counting of near-infrared photons for secure quantum communications. The SSPDs operate in the quantum detection mode, based on photon-induced hotspot formation and subsequent appearance of a transient resistive barrier across an ultrathin and submicron-width superconducting stripe. The devices are fabricated from 3.5 nm thick NbN films and kept at cryogenic (liquid helium) temperatures inside a cryostat. The detector experimental quantum efficiency in the photon-counting mode reaches above 20% in the visible radiation range and up to 10% at the 1.3–1.55 μn infrared range. The dark counts are below 0.01 per second. The measured real-time counting rate is above 2 GHz and is limited by readout electronics (the intrinsic response time is below 30 ps). The SSPD jitter is below 18 ps, and the best-measured value of the noise-equivalent power (NEP) is 2 × 10−18 W/Hz1/2. at 1.3 μm. In terms of photon-counting efficiency and speed, these NbN SSPDs significantly outperform semiconductor avalanche photodiodes and photomultipliers. |
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0950-0340 |
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1488 |
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Антипов, Андрей Владимирович; Дивочий, Александр Валерьевич; Вахтомин, Юрий Борисович; Финкель, Матвей Ильич; Смирнов, Константин Владимирович |
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Способ прецизионного позиционирования чувствительного элемента фотонного детектора |
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Patent |
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2014 |
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RU 2506664 C1 |
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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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1816 |
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Гольцман, Григорий Наумович; Корнеев, Александр Александрович; Антипов, Андрей Владимирович; Минаева, Ольга Вячеславовна; Дивочий, Александр Валерьевич; Антипов, Сергей Владимирович; Вахтомин, Юрий Борисович; Смирнов, Константин Владимирович |
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Способ фильтрации фонового излучения инфракрасного диапазона |
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Patent |
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2014 |
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RU 2510056 C1 |
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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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1815 |
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Tiulina, V.; Iomdina, E.; Goltsman, G.; Seliverstov, S.; Sianosyan, A.; Teplyakova, K.; Rusova, A.; Zaitsev, S.; Zernii, E.; Senin, I. |
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UVB promotes the initiation of uveitic inflammatory and changes in thehydration of the cornea in vivo |
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Miscellaneous |
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2019 |
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FEBS Open Bio |
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FEBS Open Bio |
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9 |
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S1 |
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79 |
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medicine; scheimpflug imaging; UVB; confocal microscopy; cornea; optical coherent tomography; rabbit eyes; terahertz radiation |
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Recently, active research has been conducted in the field of terahertz (THz) scanning of human tissues for noninvasive determination of their hydration level, which haves hown high diagnostic efficiency of this technology in various pathological conditions. Recently, we have developed a laboratory model of the facility for monitoring the state of the water balance of the cornea using THz scanning in vivo, which opens up the possibility of applying this approach in ophthalmology. The aim of the work wasto compare the results of the THz scan of the cornea with its clinical changes using the example of an experimental model of the UV induced keratouveitis. Anexperimental study, which included a comprehensive assessment of clinical changes in the cornea of rabbits during keratouveitis induction, revealed a decrease in the stability of the tear film, pathological changes in the corneal epithelium and stroma, as well as its anatomical and optical parameters. Comparison of data obtained in the THz scan of the cornea with tears production, optical coherence tomography and confocal microscopy showed their consistency in all observation periods, which allows us to conclude that the developed laboratory setup works and the feasibility of further research to promote the corneal hydration evaluation technology in clinical practice. Acknowledgements: Research was funded by the RSF, grant number 161500255. |
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Poster P-01-040 |
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1276 |
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Il'in, K. S.; Karasik, B. S.; Ptitsina, N. G.; Sergeev, A. V.; Gol'tsman, G. N.; Gershenzon, E. M.; Pechen, E. V.; Krasnosvobodtsev, S. I. |
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Electron-phonon-impurity interference in thin NbC films: electron inelastic scattering time and corrections to resistivity |
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Conference Article |
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1996 |
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Czech. J. Phys. |
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Czech. J. Phys. |
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46 |
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S2 |
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857-858 |
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NbC films |
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Complex study of transport properties of impure NbC films with the electron mean free pathl=0.6–13 nm show the crucial role of the electron-phonon-impurity interference (EPII). In the temperature range 20–70 K we found the interference correction to resistivity proportional to T2 and to the residual resistivity of the film. Using the comprehensive theory of EPII, we determine the electron coupling with transverse phonons and calculate the electron inelastic scattering time. Direct measurements of the inelastic electron scattering time using a response to a high-frequency amplitude modulated cw radiation agree well with the theory. |
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0011-4626 |
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