Records |
Author |
Voevodin, E. I.; Gershenzon, E. M.; Goltsman, G. N.; Ptitsina, N. G.; Chulkova, G. M. |
Title |
Capture of free holes by charged acceptors in uniaxially deformed Ge |
Type |
Journal Article |
Year |
1988 |
Publication |
Fizika i Tekhnika Poluprovodnikov |
Abbreviated Journal |
Fizika i Tekhnika Poluprovodnikov |
Volume |
22 |
Issue |
3 |
Pages |
540-543 |
Keywords |
Ge, free holes, capture |
Abstract |
Цель настоящей работы — исследование кинетики примесной фотопроводимости p-Ge при сильном одноосном сжатии в широком диапазоне изменения интенсивности примесного подсвета, создающего свободные дырки, и определение сечения каскадного захвата дырок на мелкие заряженные акцепторы в условиях преобладания электрон-фононного механизма потерь энергии. |
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Russian |
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Захват свободных дырок заряженными акцепторами в одноосно деформированном Ge |
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1698 |
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Gershenzon, Ye. M.; Goltsman, G. N.; Yelantyev, A. I.; Petrova, Ye. B.; Ptitsina, N. G.; Filatov, V. S. |
Title |
Lecture demonstrations of properties of superconductors and liquid helium |
Type |
Journal Article |
Year |
1987 |
Publication |
USSR Rept Phys. Math. JPRS UPM |
Abbreviated Journal |
USSR Rept Phys. Math. JPRS UPM |
Volume |
24 |
Issue |
7 |
Pages |
51 |
Keywords |
demonstrations, lections |
Abstract |
New demonstrations for low temperature physics courses are described. Two transparent Dewar vacuum flasks fitting one inside the other with the external flask for nitrogen and the internal flask for helium are used. The helium temperature can be regulated in the 4.2 to 1.6 K range and the effects of reducing helium to the superfluid state at 2.17 K can be shown: boiling abruptly stops and superfluid flow appears. In order to show the electric and magnetic characteristics of superconductivity, a superconducting NbTi solenoid containing nonsuperconducting wire and germanium and superconducting Nb materials with different critical temperatures is placed in the helium refrigerant vessel. The fall of the resistance at the critical temperatures can be shown. In order to show magnetic field and superconductive current flow properties a shunt of superconductive material is connected in parallel to the coil and is enclosed in a teflon container with a heater which can vary its temperature. When it is heated and not superconductive, magnetic field effects can be demonstrated and when it is unheated and superconducting a continuous current can be demonstrated. |
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1704 |
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Author |
Gershenzon, E. M.; Goltsman, G. N.; Multanovskii, V. V.; Ptitsina, N. G. |
Title |
Kinetics of submillimeter impurity and exciton photoconduction in Ge |
Type |
Journal Article |
Year |
1982 |
Publication |
Optics and Spectroscopy |
Abbreviated Journal |
Optics and Spectroscopy |
Volume |
52 |
Issue |
4 |
Pages |
454-455 |
Keywords |
Ge, exciton photoconduction |
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1715 |
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Author |
Gershenzon, E.; Goltsman, G.; Elantev, A.; Kagane, M. |
Title |
Energy-spectrum of small donors and acceptors in germanium and effect of magnetic-field on it |
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 |
1142-1148 |
Keywords |
energy spectrum, Ge, magnetic field |
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1722 |
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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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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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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 |
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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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Author |
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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1738 |
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Author |
Gershenzon, E. M.; Goltsman, G.; Orlova, S.; Ptitsina, N.; Gurvich, Y. |
Title |
Germanium hot-electron narrow-band detector |
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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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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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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. |
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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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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 |
Year |
2015 |
Publication |
Rus. J. Radio Electron. |
Abbreviated Journal |
Rus. J. Radio Electron. |
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Issue |
5 |
Pages |
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Keywords |
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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Semenov, A. V.; Devyatov, I. A.; Korneev, A. A.; Smirnov, K. V.; Goltsman, G. N.; Melnikov, A. P. |
Title |
Derivation of expression for thermodynamic potential of “dirty” superconductor |
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Journal Article |
Year |
2012 |
Publication |
Rus. J. Radio Electron. |
Abbreviated Journal |
Rus. J. Radio Electron. |
Volume |
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4 |
Pages |
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Keywords |
dirty superconductor, Usadel theory, thermodynamic potential |
Abstract |
We derive a formula for thermodynamic potential of dirty superconductor which express it via isotropic quasiclassical Green functions of Usadel theory. Our result allows unify description of dynamic processes and fluctuations in superconducting nano-electronic devices. |
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Russian |
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7 pages |
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1824 |
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Tiulina, V.; Iomdina, E.; Goltsman, G.; Seliverstov, S.; Sianosyan, A.; Teplyakova, K.; Rusova, A.; Zaitsev, S.; Zernii, E.; Senin, I. |
Title |
UVB promotes the initiation of uveitic inflammatory and changes in thehydration of the cornea in vivo |
Type |
Miscellaneous |
Year |
2019 |
Publication |
FEBS Open Bio |
Abbreviated Journal |
FEBS Open Bio |
Volume |
9 |
Issue |
S1 |
Pages |
79 |
Keywords |
medicine; scheimpflug imaging; UVB; confocal microscopy; cornea; optical coherent tomography; rabbit eyes; terahertz radiation |
Abstract |
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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2211-5463 |
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Poster P-01-040 |
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1276 |
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Fedorov, G.; Gayduchenko, I.; Titova, N.; Gazaliev, A.; Moskotin, M.; Kaurova, N.; Voronov, B.; Goltsman, G. |
Title |
Carbon nanotube based schottky diodes as uncooled terahertz radiation detectors |
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Journal Article |
Year |
2018 |
Publication |
Phys. Status Solidi B |
Abbreviated Journal |
Phys. Status Solidi B |
Volume |
255 |
Issue |
1 |
Pages |
1700227 (1 to 6) |
Keywords |
carbon nanotube schottky diodes, CNT |
Abstract |
Despite the intensive development of the terahertz technologies in the last decade, there is still a shortage of efficient room‐temperature radiation detectors. Carbon nanotubes (CNTs) are considered as a very promising material possessing many of the features peculiar for graphene (suppression of backscattering, high mobility, etc.) combined with a bandgap in the carrier spectrum. In this paper, we investigate the possibility to incorporate individual CNTs into devices that are similar to Schottky diodes. The latter is currently used to detect radiation with a frequency up to 50 GHz. We report results obtained with semiconducting (bandgap of about 0.5 eV) and quasi‐metallic (bandgap of few meV) single‐walled carbon nanotubes (SWNTs). Semiconducting CNTs show better performance up to 300 GHz with responsivity up to 100 V W−1, while quasi‐metallic CNTs are shown to operate up to 2.5 THz. |
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0370-1972 |
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1321 |
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