| Records |
| Author |
Xu, Y.; Zheng, X.; Williams, C.; Verevkin, A.; Sobolewski, R.; Chulkova, G.; Lipatov, A.; Okunev, O.; Smirnov, K.; Gol’tsman, G. N. |
| Title |
Ultrafast superconducting hot-electron single-photon detector |
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Conference Article |
| Year |
2001 |
Publication |
CLEO |
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CLEO |
| Volume |
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345 |
| Keywords |
NbN SSPD, SNSPD |
| Abstract |
Summary form only given. The current most-pressing need is to develop a practical, GHz-range counting single-photon detector, operational at either 1.3-/spl mu/m or 1.55-/spl mu/m radiation wavelength, for novel quantum communication and quantum cryptography systems. The presented solution of the problem is to use an ultrafast hot-electron photodetector, based on superconducting thin-film microstructures. This type of device is very promising, due to the macroscopic quantum nature of superconductors. Very fast response time and the small, (meV range) value of the superconducting energy gap characterize the superconductor, leading to the efficient avalanche process even for infrared photons. |
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Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest (IEEE Cat. No.01CH37170) |
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1545 |
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Ganzevles, W. F. M.; Gao, J. R.; de Korte, P. A. J.; Klapwijk, T. M. |
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Direct response of microstrip line coupled Nb THz hot-electron bolometer mixers |
Type |
Journal Article |
| Year |
2001 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
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79 |
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15 |
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2483-2485 |
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0003-6951 |
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311 |
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Zwiller, Vale<cc><81>ry; Blom, Hans; Jonsson, Per; Panev, Nikolay; Jeppesen, Sören; Tsegaye, Tedros; Goobar, Edgard; Pistol, Mats-Erik; Samuelson, Lars; Björk, Gunnar |
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Single quantum dots emit single photons at a time: Antibunching experiments |
Type |
Journal Article |
| Year |
2001 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
| Volume |
78 |
Issue |
17 |
Pages |
2476 |
| Keywords |
antibunching, quantum dot |
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0003-6951 |
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502 |
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Gol’tsman, G. N.; Okunev, O.; Chulkova, G.; Lipatov, A.; Semenov, A.; Smirnov, K.; Voronov, B.; Dzardanov, A.; Williams, C.; Sobolewski, R. |
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Picosecond superconducting single-photon optical detector |
Type |
Journal Article |
| Year |
2001 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
| Volume |
79 |
Issue |
6 |
Pages |
705-707 |
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NbN SSPD, SNSPD |
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We experimentally demonstrate a supercurrent-assisted, hotspot-formation mechanism for ultrafast detection and counting of visible and infrared photons. A photon-induced hotspot leads to a temporary formation of a resistive barrier across the superconducting sensor strip and results in an easily measurable voltage pulse. Subsequent hotspot healing in ∼30 ps time frame, restores the superconductivity (zero-voltage state), and the detector is ready to register another photon. Our device consists of an ultrathin, very narrow NbN strip, maintained at 4.2 K and current-biased close to the critical current. It exhibits an experimentally measured quantum efficiency of ∼20% for 0.81 μm wavelength photons and negligible dark counts. |
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0003-6951 |
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1543 |
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Siemsen, K. J.; Bernard, J. E.; Madej, A. A.; Marmet, L. |
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Absolute frequency measurement of a CO2/OsO4 stabilized laser at 28.8 THz |
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Journal Article |
| Year |
2001 |
Publication |
Applied Physics B: Lasers and Optics |
Abbreviated Journal |
Appl. Phys. B: Lasers and Optics |
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72 |
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567-573 |
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HgCdTe detector |
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