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Ryabchun, S.; Tong, C.-yu E.; Blundell, R.; Kimberk, R.; Gol’tsman, G. |
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Title |
Effect of microwave radiation on the stability of terahertz hot-electron bolometer mixers |
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Conference Article |
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Year |
2006 |
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Proc. SPIE |
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Proc. SPIE |
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Volume |
6373 |
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63730J (1 to 5) |
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Keywords |
NbN HEB mixers, hot-electron bolometer mixers, stability, Allan variance, LO power fluctuations |
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Abstract |
We report our studies of the effect of microwave radiation, with a frequency much lower than that corresponding to the energy gap of the superconductor, on the performance of the NbN hot-electron bolometer (HEB) mixer incorporated into a THz heterodyne receiver. It is shown that exposing the HEB mixer to microwave radiation does not result in a significant rise of the receiver noise temperature and degradation of the mixer conversion gain so long as the level of microwave power is small compared to the local oscillator drive. Hence the injection of a small, but controlled amount of microwave radiation enables active compensation of local oscillator power and coupling fluctuations which can significantly degrade the stability of HEB mixer receivers. |
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SPIE |
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Anwar, M.; DeMaria, A.J.; Shur, M.S. |
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Terahertz Physics, Devices, and Systems |
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1441 |
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Author |
Dauler, E. A.; Kerman, A. J.; Robinson, B. S.; Yang, J. K. W.; Voronov, B. M.; Gol’tsman, G. N.; Berggren, K. K. |
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Title |
Achieving high counting rates in superconducting nanowire single-photon detectors |
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Conference Article |
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2006 |
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CLEO/QELS |
Abbreviated Journal |
CLEO/QELS |
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Pages |
JTuD3 (1 to 2) |
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Keywords |
SSPD; SNSPD; Detectors; Photodetectors; Quantum optics; Quantum detectors; Photon counting; Photons; Pulse shaping; Quantum communications; Single photon detectors; Superconductors |
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Kinetic inductance is determined to be the primary limitation to the counting rate of superconducting nanowire single-photon counters. Approaches for overcoming this limitation will be discussed. |
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Optical Society of America |
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Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies |
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1451 |
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de Graauw, Thijs; Whyborn, Nick; Caux, Emmanuel; Phillips, Tom; Stutzki, Juergen; Tielens, Xander; Güsten, Rolf; Helmich, Frank; Luinge, W.; Pearson, John; Roelfsema, Peter; Schieder, Rudolf; Wildeman, Klaas; Wafelbakker, Kees |
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Title |
The Herschel-heterodyne instrument for the far-infrared (HIFI) |
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2006 |
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Proc. SPIE |
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Orlando |
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421 |
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HgCdTe detectors technical data sheet |
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Miscellaneous |
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2006 |
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HgCdTe |
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RPLAB @ s @ |
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464 |
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Author |
Hadfield, Robert. H.; Habif, Jonathan L.; Schlafer, John; Schwall, Robert. E.; Nam, Sae Woo |
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Title |
Quantum key distribution at 1550 nm with twin superconducting single-photon detectors |
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Journal Article |
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Year |
2006 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
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89 |
Issue |
24 |
Pages |
241129 |
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Keywords |
SSPD, quantum cryptography |
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0003-6951 |
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533 |
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