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Lobanov, Yury; Shcherbatenko, Michael; Shurakov, Alexander; Rodin, Alexander V.; Klimchuk, Artem; Nadezhdinsky, Alexander I.; Maslennikov, Sergey; Larionov, Pavel; Finkel, Matvey; Semenov, Alexander; Verevkin, Aleksandr A.; Voronov, Boris M.; Ponurovsky, Yakov; Klapwijk, Teunis M.; Gol'tsman, Gregory N. |
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Heterodyne detection at near-infrared wavelengths with a superconducting NbN hot-electron bolometer mixer |
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2014 |
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Opt. Lett. |
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39 |
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6 |
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1429-1432 |
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HEB, zebra, IR, infrared |
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We report on the development of a highly sensitive optical receiver for heterodyne IR spectroscopy at the communication wavelength of 1.5 μm (200 THz) by use of a superconducting hot-electron bolometer. The results are important for the resolution of narrow spectral molecular lines in the near-IR range for the study of astronomical objects, as well as for quantum optical tomography and fiber-optic sensing. Receiver configuration as well as fiber-to-detector light coupling designs are discussed. Light absorption of the superconducting detectors was enhanced by nano-optical antennas, which were coupled to optical fibers. An intermediate frequency (IF) bandwidth of about 3 GHz was found in agreement with measurements at 300 GHz, and a noise figure of about 25 dB was obtained that was only 10 dB above the quantum limit. |
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906 |
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Divochiy, Aleksander; Marsili, Francesco; Bitauld, David; Gaggero, Alessandro; Leoni, Roberto; Mattioli, Francesco; Korneev, Alexander; Seleznev, Vitaliy; Kaurova, Nataliya; Minaeva, Olga; Gol'tsman, Gregory; Lagoudakis, Konstantinos G.; Benkhaoul, Moushab; Lévy, Francis; Fiore, Andrea |
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Superconducting nanowire photon-number-resolving detector at telecommunication wavelengths |
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Journal Article |
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2008 |
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Nat. Photon. |
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Nat. Photon. |
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2 |
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5 |
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302-306 |
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SSPD, photon-number-resolving |
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Optical-to-electrical conversion, which is the basis of the operation of optical detectors, can be linear or nonlinear. When high sensitivities are needed, single-photon detectors are used, which operate in a strongly nonlinear mode, their response being independent of the number of detected photons. However, photon-number-resolving detectors are needed, particularly in quantum optics, where n-photon states are routinely produced. In quantum communication and quantum information processing, the photon-number-resolving functionality is key to many protocols, such as the implementation of quantum repeaters1 and linear-optics quantum computing2. A linear detector with single-photon sensitivity can also be used for measuring a temporal waveform at extremely low light levels, such as in long-distance optical communications, fluorescence spectroscopy and optical time-domain reflectometry. We demonstrate here a photon-number-resolving detector based on parallel superconducting nanowires and capable of counting up to four photons at telecommunication wavelengths, with an ultralow dark count rate and high counting frequency. |
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916 |
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Semenov, Alexei; Richter, Heiko; Smirnov, Konstantin; Voronov, Boris; Gol'tsman, Gregory; Hübers, Heinz-Wilhelm |
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The development of terahertz superconducting hot-electron bolometric mixers |
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2004 |
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Supercond. Sci. Technol. |
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Supercond. Sci. Technol. |
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17 |
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5 |
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436-439 |
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NbN HEB mixers |
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We present recent advances in the development of NbN hot-electron bolometric (HEB) mixers for flying terahertz heterodyne receivers. Three important issues have been addressed: the quality of the source NbN films, the effect of the bolometer size on the spectral properties of different planar feed antennas, and the local oscillator (LO) power required for optimal operation of the mixer. Studies of the NbN films with an atomic force microscope indicated a surface structure that may affect the performance of the smallest mixers. Measured spectral gain and noise temperature suggest that at frequencies above 2.5 THz the spiral feed provides better overall performance than the double-slot feed. Direct measurements of the optimal LO power support earlier estimates made in the framework of the uniform mixer model. |
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357 |
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Semenov, Alexei D; Gol'tsman, Gregory N; Sobolewski, Roman |
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Hot-electron effect in superconductors and its applications for radiation sensors |
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2002 |
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Superconductor Science and Technology |
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Supercond. Sci. Technol. |
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15 |
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4 |
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R1-R16 |
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HEB, SSPD |
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The paper reviews the main aspects of nonequilibrium hot-electron phenomena in superconductors and various theoretical models developed to describe the hot-electron effect. We discuss implementation of the hot-electron avalanche mechanism in superconducting radiation sensors and present the most successful practical devices, such as terahertz mixers and direct intensity detectors, for far-infrared radiation. Our presentation also includes the novel approach to hot-electron quantum detection implemented in superconducting x-ray to optical photon counters. |
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0953-2048 |
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416 |
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Kawamura, Jonathan; Blundell, Raymond; Tong, C.-Y. Edward; Papa, D. Cosmo; Hunter, Todd R.; Paine, Scot.t. N.; Patt, Ferdinand; Gol'tsman, Gregory; Cherednichenko, Sergei; Voronov, Boris; Gershenzon, Eugene |
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Superconductive hot-electron bolometer mixer receiver for 800 GHz operation |
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Miscellaneous |
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2000 |
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IEEE Trans. Microwave Theory and Techniques |
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IEEE Trans. Microwave Theory and Techniques |
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48 |
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4 |
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683-689 |
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RPLAB @ s @ Kawamura_superconductivehot-electron |
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424 |
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