| Records |
| Author |
Gershenzon, E.; Goltsman, G.; Orlov, L.; Ptitsina, N. |
| Title |
Population of excited-states of small admixtures in germanium |
Type |
Conference Article |
| Year |
1978 |
Publication |
Izv. Akad. Nauk SSSR, Seriya Fizicheskaya |
Abbreviated Journal |
Izv. Akad. Nauk SSSR, Seriya Fizicheskaya |
| Volume |
42 |
Issue |
6 |
Pages |
1154-1159 |
| Keywords |
Ge, excited states, admixtures |
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Mezhdunarodnaya Kniga 39 Dimitrova Ul., 113095 Moscow, Russia |
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1723 |
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| Author |
Blagosklonskaya, L. E.; Gershenzon, E. M.; Goltsman, G. N.; Elantev, A. I. |
| Title |
Effect of strong magnetic-field on spectrum of hydrogen-like admixtures in semiconductors |
Type |
Conference Article |
| Year |
1978 |
Publication |
Izv. Akad. Nauk SSSR, Seriya Fizicheskaya |
Abbreviated Journal |
Izv. Akad. Nauk SSSR, Seriya Fizicheskaya |
| Volume |
42 |
Issue |
6 |
Pages |
1231-1234 |
| Keywords |
spectrum, semiconductors, admixtures, strong magnetic-field |
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Mezhdunarodnaya Kniga 39 Dimitrova Ul., 113095 Moscow, Russia |
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blagosklonskaya1978effect |
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1724 |
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| Author |
Gershenzon, E. M.; Goltsman, G. N.; Orlov, L. |
| Title |
Investigation of population and ionization of donor excited states in Ge |
Type |
Conference Article |
| Year |
1976 |
Publication |
Physics of Semiconductors |
Abbreviated Journal |
Physics of Semiconductors |
| Volume |
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Issue |
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Pages |
631-634 |
| Keywords |
Ge, donor excited states |
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| Address |
Amsterdam |
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| Publisher |
North-Holland Publishing Co. |
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no |
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1732 |
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| Author |
Gershenzon, E. M.; Goltsman, G. N.; Ptitsyna, N. G. |
| Title |
Investigation of excited donor states in GaAs |
Type |
Journal Article |
| Year |
1974 |
Publication |
Sov. Phys. Semicond. |
Abbreviated Journal |
Sov. Phys. Semicond. |
| Volume |
7 |
Issue |
10 |
Pages |
1248-1250 |
| Keywords |
GaAs, excited donor states |
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Amer Inst Physics 1305 Walt Whitman Rd, Ste 300, Melville, Ny 11747-4501 Usa |
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1733 |
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Goltsman, G. |
| Title |
Simple method for stabilizing power of submillimetric spectrometer |
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Journal Article |
| Year |
1972 |
Publication |
Pribory i Tekhnika Eksperimenta |
Abbreviated Journal |
Pribory i Tekhnika Eksperimenta |
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Issue |
1 |
Pages |
136 |
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Mezhdunarodnaya Kniga 39 Dimitrova Ul., Moscow, 113095, Russia |
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no |
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1738 |
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| Author |
Gershenzon, E. M.; Goltsman, G.; Orlova, S.; Ptitsina, N.; Gurvich, Y. |
| Title |
Germanium hot-electron narrow-band detector |
Type |
Journal Article |
| Year |
1971 |
Publication |
Sov. Radio Engineering And Electronic Physics |
Abbreviated Journal |
Sov. Radio Engineering And Electronic Physics |
| Volume |
16 |
Issue |
8 |
Pages |
1346 |
| Keywords |
Ge HEB detectors |
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Scripps Clinic Res Foundation 476 Prospect St, La Jolla, Ca 92037 |
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1741 |
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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 |
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Conference Article |
| Year |
2014 |
Publication |
8th Metamaterials |
Abbreviated Journal |
8th Metamaterials |
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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. |
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Copenhagen, Denmark |
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8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics – Metamaterials |
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1749 |
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Baeva, E. M.; Titova, N. A.; Veyrat, L.; Sacépé, B.; Semenov, A. V.; Goltsman, G. N.; Kardakova, A. I.; Khrapai, V. S. |
| Title |
Thermal relaxation in metal films limited by diffuson lattice excitations of amorphous substrates |
Type |
Journal Article |
| Year |
2021 |
Publication |
Phys. Rev. Applied |
Abbreviated Journal |
Phys. Rev. Applied |
| Volume |
15 |
Issue |
5 |
Pages |
054014 |
| Keywords |
InOx, Au/Ni, NbN films |
| Abstract |
We examine the role of a silicon-based amorphous insulating substrate in the thermal relaxation in thin NbN, InOx, and Au/Ni films at temperatures above 5 K. The samples studied consist of metal bridges on an amorphous insulating layer lying on or suspended above a crystalline substrate. Noise thermometry is used to measure the electron temperature Te of the films as a function of Joule power per unit area P2D. In all samples, we observe a P2D∝Tne dependence, with exponent n≃2, which is inconsistent with both electron-phonon coupling and Kapitza thermal resistance. In suspended samples, the functional dependence of P2D(Te) on the length of the amorphous insulating layer is consistent with the linear temperature dependence of the thermal conductivity, which is related to lattice excitations (diffusons) for a phonon mean free path shorter than the dominant phonon wavelength. Our findings are important for understanding the operation of devices embedded in amorphous dielectrics. |
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2331-7019 |
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no |
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1769 |
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Shcherbatenko, M.; Elezov, M.; Manova, N.; Sedykh, K.; Korneev, A.; Korneeva, Y.; Dryazgov, M.; Simonov, N.; Feimov, A.; Goltsman, G.; Sych, D. |
| Title |
Single-pixel camera with a large-area microstrip superconducting single photon detector on a multimode fiber |
Type |
Journal Article |
| Year |
2021 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
| Volume |
118 |
Issue |
18 |
Pages |
181103 |
| Keywords |
NbN SSPD, SNSPD |
| Abstract |
High sensitivity imaging at the level of single photons is an invaluable tool in many areas, ranging from microscopy to astronomy. However, development of single-photon sensitive detectors with high spatial resolution is very non-trivial. Here we employ the single-pixel imaging approach and demonstrate a proof-of-principle single-pixel single-photon imaging setup. We overcome the problem of low light gathering efficiency by developing a large-area microstrip superconducting single photon detector coupled to a multi-mode optical fiber interface. We show that the setup operates well in the visible and near infrared spectrum, and is able to capture images at the single-photon level.
We thank Philipp Zolotov and Pavel Morozov for NbN film fabrication, ARC coating, and fiber coupling of the detector. We also thank Swabian Instruments GmbH and Dr. Helmut Fedder personally for the kindly provided experimental equipment (Time Tagger Ultra 8). The work in the part of SNSPD research and development was supported by the Russian Foundation for Basic Research Project No. 18-29-20100. The work in the part of the optical setup and imaging was supported by Russian Foundation for Basic Research Project No. 20-32-51004. |
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0003-6951 |
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no |
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1770 |
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Smirnov, K.; Vachtomin, Y.; Divochiy, A.; Antipov, A.; Goltsman, G. |
| Title |
The limitation of noise equivalent power by background radiation for infrared superconducting single photon detectors coupled to standard single mode optical fibers |
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Journal Article |
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2015 |
Publication |
Rus. J. Radio Electron. |
Abbreviated Journal |
Rus. J. Radio Electron. |
| Volume |
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5 |
Pages |
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NbN SSPD |
| Abstract |
We investigated the minimum level of the dark count rates and noise equivalent power of superconducting single photon detectors coupled to standard single mode optical fibers. We found that background radiation limits the minimum level of the dark count rates. We also proposed the effective method for reducing background radiation out of the required spectral range of the detector. Measured noise equivalent power of detector reaches 8.9×10-19 W×Hz1/2 at a wavelength of 1.55 μm and quantum efficiency 35%. |
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14 pages |
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1813 |
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