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公开(公告)号:US06812464B1
公开(公告)日:2004-11-02
申请号:US09628116
申请日:2000-07-28
申请人: Roman Sobolewski , Grigory N. Gol'tsman , Alexey D. Semenov , Oleg V. Okunev , Kenneth R. Wilsher , Steven A. Kasapi
发明人: Roman Sobolewski , Grigory N. Gol'tsman , Alexey D. Semenov , Oleg V. Okunev , Kenneth R. Wilsher , Steven A. Kasapi
IPC分类号: H01L3900
CPC分类号: H01L39/10 , G01J1/0209 , G01J1/0252 , G01J1/0411 , G01J1/42 , H01L31/101
摘要: A single photon detector includes a superconductor strip biased near its critical current. The superconductor strip provides a discernible output signal upon absorption of a single incident photon. In one example, the superconductor is a strip of NbN (niobium nitride). In another example, the superconductor strip meanders to increase its probability of receiving a photon from a light source. The single-photon detector is suitable for a variety of applications including free-space and satellite communications, quantum communications, quantum cryptography, weak luminescence, and semiconductor device testing.
摘要翻译: 单个光子检测器包括在其临界电流附近偏置的超导体带。 超导体条在吸收单个入射光子时提供可辨别的输出信号。 在一个实例中,超导体是NbN(氮化铌)的条带。 在另一个示例中,超导体条弯曲以增加其从光源接收光子的概率。 单光子检测器适用于自由空间和卫星通信,量子通信,量子加密,弱发光和半导体器件测试等各种应用。
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公开(公告)号:US07049593B2
公开(公告)日:2006-05-23
申请号:US10969315
申请日:2004-10-19
申请人: Roman Sobolewski , Grigory N. Gol'tsman , Alexey D. Semenov , Oleg V. Okunev , Kenneth R. Wilsher , Steven A. Kasapi
发明人: Roman Sobolewski , Grigory N. Gol'tsman , Alexey D. Semenov , Oleg V. Okunev , Kenneth R. Wilsher , Steven A. Kasapi
IPC分类号: H01L39/00
CPC分类号: H01L39/10 , G01J1/0209 , G01J1/0252 , G01J1/0411 , G01J1/42 , H01L31/101
摘要: A single-photon detector includes a superconductor strip biased near its critical current. The superconductor strip provides a discernible output signal upon absorption of a single incident photon. In one example, the superconductor is a strip of NbN (niobium nitride). In another example, the superconductor strip meanders to increase its probability of receiving a photon from a light source. The single-photon detector is suitable for a variety of applications including free-space and satellite communications, quantum communications, quantum cryptography, weak luminescence, and semiconductor device testing.
摘要翻译: 单光子检测器包括在其临界电流附近偏置的超导体带。 超导体条在吸收单个入射光子时提供可辨别的输出信号。 在一个实例中,超导体是NbN(氮化铌)的条带。 在另一个示例中,超导体条弯曲以增加其从光源接收光子的概率。 单光子检测器适用于自由空间和卫星通信,量子通信,量子加密,弱发光和半导体器件测试等各种应用。
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