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Zhong, Tian; Hu, Xiaolong; Wong, Franco N. C.; Berggren, Karl K.; Roberts, Tony D.; Battle, Philip |
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High-quality fiber-optic polarization entanglement distribution at 1.3 μm telecom wavelength |
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2010 |
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Optics Letters |
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Opt. Lett. |
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35 |
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9 |
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1392-1394 |
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We demonstrate high-quality distribution of 1.3 μm polarization-entangled photons generated from a fiber-coupled periodically poled KTiOPO4 waveguide over 200 m fiber-optic cables. Time-multiplexed measurements with a 19% efficient superconducting nanowire single-photon detector at the remote location show a detected flux of 5.8 pairs / s at a pump power of 25 μW and an average two-photon quantum-interference visibility of 97.7% without subtraction of accidentals. |
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686 |
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Gershenzon, E. M.; Gurvich, Y. A.; Orlova, S. L.; Ptitsina, N. G. |
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Title |
Scattering of electrons by charged impurities in Ge under cyclotron resonance conditions |
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1976 |
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Presumably: Sov. Phys. Semicond. | Физика и техника полупроводников |
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Presumably: Sov. Phys. Semicond. | Физика и техника полупроводников |
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10 |
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1379-1383 |
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Ge, cyclotron resonance, charged impurities, |
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1772 |
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Koshelets, V. P.; Ermakov, A. B.; Filippenko, L. V.; Koryukin, O. V.; Khudchenko, A. V.; Sobolev, A. S.; Torgashin, M. Yu.; Yagoubov, P. A.; Hoogeveen, R. W. M.; Vreeling, W. J.; Wild, W.; Pylypenko, O. M. |
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Superconducting submm integrated receiver for TELIS |
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Conference Article |
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2006 |
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J. Phys.: Conf. Ser. |
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J. Phys.: Conf. Ser. |
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43 |
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1377-1380 |
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SIR |
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1742-6588 |
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514 |
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Archer, J. W. |
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Multiple mixer, cryogenic receiver for 200-350 GHz |
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1983 |
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Rev. Sci. Instrum. |
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Rev. Sci. Instrum. |
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54 |
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10 |
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1371-1376 |
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Schottky, mixer, noise temperature |
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This paper describes a new 200–350-GHz dual polarization heterodyne radiometer receiver for radio astronomy applications. The receiver incorporates four pairs of cryogenically cooled Schottky-barrier diode single-ended mixers, each pair covering a 30–40-GHz subband of the full operating band. Each mixer, with its IF amplifier, is mounted in an individual cryogenic subdewar comprising a separate vcuum chamber and a cold stage, which may be readily thermally connected to or disconnected from the main refrigerator by a novel mechanical heat switch. A dual polarization LO diplexer is mounted on a rotary table above the subdewars. For band selection, the two diplexer rf output ports may be positioned over any of the four pairs of subdewars. The SSB receiver noise temperatues achieved are less than 500 K between 200 and 240 GHz, less than 800 K between 245 and 275 GHz and 1500 K at 345 GHz. |
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589 |
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Gershenzon, E. M.; Gol'tsman, G. N.; Gogidze, I. G.; Semenov, A. D.; Sergeev, A. V. |
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Processes of electron-phonon interaction in thin YBaCuO films |
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1991 |
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Phys. C: Supercond. |
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Phys. C: Supercond. |
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185-189 |
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1371-1372 |
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YBCO HTS detectors |
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The ultrafast voltage response of YBaCuO films to laser radiation is studied and compared with previously investigated quasiparicles response to radiation of submillimeter wavelength range. Voltage shift under the visible light radiation has two components. Picosecond response realized as suppression superconductivity by nonequilibrium excess quasiparticles, response time is determined by quasiparticles recombination rate. Nanosecond response is probably due to bolometric effect. |
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0921-4534 |
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