Records |
Author |
Korneev, A.; Minaeva, O.; Rubtsova, I.; Milostnaya, I.; Chulkova, G.; Voronov, B.; Smirnov, K.; Seleznev, V.; Gol'tsman, G.; Pearlman, A.; Slysz, W.; Cross, A.; Alvarez, P.; Verevkin, A.; Sobolewski, R. |
Title |
Superconducting single-photon ultrathin NbN film detector |
Type |
Journal Article |
Year |
2005 |
Publication |
Quantum Electronics |
Abbreviated Journal |
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Volume |
35 |
Issue |
8 |
Pages |
698-700 |
Keywords |
NbN SSPD, SNSPD |
Abstract |
Superconducting single-photon ultrathin NbN film detectors are studied. The development of manufacturing technology of detectors and the reduction of their operating temperature down to 2 K resulted in a considerable increase in their quantum efficiency, which reached in the visible region (at 0.56 μm) 30%—40%, i.e., achieved the limit determined by the absorption coefficient of the film. The quantum efficiency exponentially decreases with increasing wavelength, being equal to ~20% at 1.55 μm and ~0.02% at 5 μm. For the dark count rate of ~10-4s-1, the experimental equivalent noise power was 1.5×10-20 W Hz-1/2; it can be decreased in the future down to the record low value of 5×10-21 W Hz-1/2. The time resolution of the detector is 30 ps. |
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Сверхпроводящий однофотонный детектор на основе ультратонкой пленки NbN |
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Serial |
383 |
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Author |
Hu, Xiaolong; Dauler, Eric A.; Kerman, Andrew J.; Yang, Joel K. W.; White, James E.; Herder, Charles H.; Berggren, Karl K. |
Title |
Using surface plasmons to enhance the speed and efficiency of superconducting nanowire single-photon detectors |
Type |
Conference Article |
Year |
2009 |
Publication |
Proceedings of the Conference on Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference |
Abbreviated Journal |
Proc of Conf. on Lasers and El.-Opt. |
Volume |
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Issue |
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Pages |
1-2 |
Keywords |
optical antennas |
Abstract |
We report our design and fabrication of superconducting nanowire single-photon detectors integrated with gold plasmonic nanostructures, which can enhance the absorption of TM-polarized light, and can enlarge the effective area without sacrificing detector speed. |
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RPLAB @ gujma @ |
Serial |
744 |
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