| Records |
| Author |
Smirnov, Konstantin; Vachtomin, Yury; Divochiy, Alexander; Antipov, Andrey; Goltsman, Gregory |
| Title |
Dependence of dark count rates in superconducting single photon detectors on the filtering effect of standard single mode optical fibers |
Type |
Journal Article |
| Year |
2015 |
Publication |
Appl. Phys. Express |
Abbreviated Journal |
Appl. Phys. Express |
| Volume |
8 |
Issue |
2 |
Pages |
022501 (1 to 4) |
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IOP Publishing |
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1882-0778 |
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RPLAB @ sasha @ smirnov2015dependence |
Serial |
1049 |
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| Author |
Sidorova, Maria V.; Divochiy, Alexander; Vakhtomin, Yury B.; Smirnov, Konstantin V. |
| Title |
Ultrafast superconducting single-photon detector with reduced-size active area coupled to a tapered lensed single-mode fiber |
Type |
Conference Article |
| Year |
2015 |
Publication |
Proc. SPIE |
Abbreviated Journal |
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| Volume |
9504 |
Issue |
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Pages |
950408 (1 to 9) |
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International Society for Optics and Photonics |
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RPLAB @ sasha @ sidorova2015ultrafast |
Serial |
1051 |
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| Author |
Gol'tsman, Gregory; Semenov, Alexei; Smirnov, Konstantin; Voronov, Boris |
| Title |
Background limited quantum superconducting detector for submillimeter wavelengths |
Type |
Conference Article |
| Year |
2001 |
Publication |
Proc. 12th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 12th Int. Symp. Space Terahertz Technol. |
| Volume |
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Issue |
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Pages |
469-475 |
| Keywords |
Ti SQD, SQUID readout |
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Serial |
1540 |
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| Author |
Semenov, Alexei D.; Hübers, Heinz-Wilhelm; Richter, Heiko; Smirnov, Konstantin; Gol'tsman, Gregory N.; Voronov, Boris M. |
| Title |
Superconducting hot-electron bolometer mixer for terahertz heterodyne receivers |
Type |
Abstract |
| Year |
2004 |
Publication |
Proc. 15th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 15th Int. Symp. Space Terahertz Technol. |
| Volume |
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Issue |
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Pages |
164 |
| Keywords |
NbN HEB mixers |
| Abstract |
A number of on-going astronomical and atmospheric research programs are aimed to the Terahertz (THz) spectral region. At frequencies above about 1.4 THz heterodyne receivers planned for these missions will use superconducting hot-electron bolometers as a mixers. We present current results on the development of superconducting NbN hot- electron bolometer mixer and quasioptical radiation coupling scheme for GREAT (German Receiver for Astronomy at Terahertz Frequencies, to be used aboard of SOFIA) and TELIS (Terahertz Limb Sounder). The mixer is incorporated into hybrid antenna consisting of a planar feed antenna, which has either logarithmic spiral or double-slot configuration, and hyperhemispherical silicon lens. For the log-spiral feed antenna, the double side-band receiver noise temperature of 5500 K was achieved at 4.3 THz. The noise temperature shows less than 3 dB increase in the intermediate frequency band from 4 GHz to 7 GHz. The hybrid antenna had almost frequency independent and symmetric radiation pattern with the beam-width slightly broader than expected for a diffraction limited pattern. Results of FTS measurements in the direct detection regime agreed with the spectral dependence of the noise temperature for spiral antennas with different spacing of inner terminals. |
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no |
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Serial |
1492 |
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| Author |
Semenov, Alexei D.; Hiibers, Heinz-Wilhelm; Richter, Heiko; Smirnov, Konstantin; Gol'tsman, Gregory N.; Kaurova, Natalia; Voronov, Boris M. |
| Title |
Superconducting hot-electron bolometer mixer for terahertz heterodyne receivers |
Type |
Conference Article |
| Year |
2003 |
Publication |
Proc. 14th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 14th Int. Symp. Space Terahertz Technol. |
| Volume |
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Issue |
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Pages |
33-40 |
| Keywords |
NbN HEB mixers |
| Abstract |
A number of on-going astronomical and atmospheric research programs are aimed to the Terahertz (THz) spectral region. At frequencies above about 1.4 THz heterodyne receivers planned for these missions will use superconducting hot-electron bolometers as a mixers. We present recent results of the terahertz antenna development of superconducting NbN hot-electron bolometer mixer for GREAT (German Receiver for Astronomy at Terahertz Frequencies, to be used aboard of SOFIA) and TELIS (Terahertz Limb Sounder). The mixer is incorporated into hybrid antenna consisting of a planar feed antenna, which has either logarithmic spiral or double-slot configuration, and hyper hemispherical silicon lens. The hybrid antenna showed almost frequency independent and symmetric radiation pattern with the beam-width slightly broader than expected for diffraction limited antenna. The noise temperature as well as its spectral dependence changes with the bolometer sizes that provides additional tool for mixer optimization. FTS spectra measured in the direct detection regime agreed with the noise temperature spectra. |
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no |
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1498 |
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