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Author |
Kollberg, Erik L.; Gershenzon, E.; Goltsman, G.; Yngvesson, K. S. |
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Title |
Hot electron mixers, the potential competition |
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Conference Article |
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1992 |
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Proc. ESA Symp. on Photon Detectors for Space Instrumentation |
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Proc. ESA Symp. on Photon Detectors for Space Instrumentation |
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201-206 |
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HEB mixers |
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There is an urgent need in radio astronomy for low noise heterodyne receivers for frequencies above about 500 GHz. It is not certain that mixers based on superconducting quasiparticle tunnelling (SIS mixers) may turn out to be the answer to this need. In order to try to find an alternative way for realizing low noise heterodyne receivers for submillimeter waves, so called hot electron bolometric effects for mixing are now being investigated. Two basically different approaches are tried, one based on semiconductors and one on superconductors. Both methods are briefly discussed in this overview paper. |
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ESA Symposium on Photon Detectors for Space Instrumentation |
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1667 |
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Author |
Gershenzon, E. M.; Goltsman, G. N.; Orlov, L. |
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Title |
Investigation of population and ionization of donor excited states in Ge |
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Conference Article |
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1976 |
Publication |
Physics of Semiconductors |
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Physics of Semiconductors |
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631-634 |
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Ge, donor excited states |
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Amsterdam |
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North-Holland Publishing Co. |
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1732 |
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Author |
Goltsman, G. |
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Title |
Simple method for stabilizing power of submillimetric spectrometer |
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1972 |
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Pribory i Tekhnika Eksperimenta |
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Pribory i Tekhnika Eksperimenta |
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1 |
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136 |
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Mezhdunarodnaya Kniga 39 Dimitrova Ul., Moscow, 113095, Russia |
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1738 |
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Averkin, A. S.; Shishkin, A. G.; Chichkov, V. I.; Voronov, B. M.; Goltsman, G. N.; Karpov, A.; Ustinov, A. V. |
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Tunable frequency-selective surface based on superconducting split-ring resonators |
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Conference Article |
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2014 |
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8th Metamaterials |
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8th Metamaterials |
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superconducting split-ring resonators |
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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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Author |
Smirnov, K.; Vachtomin, Y.; Divochiy, A.; Antipov, A.; Goltsman, G. |
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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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2015 |
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Rus. J. Radio Electron. |
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Rus. J. Radio Electron. |
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5 |
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NbN SSPD |
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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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