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1. 发明公开

KR1020020010105A 초전도 단일 광자 검출기 无效
标题翻译：超导单光子探测器
公开(公告)号：KR1020020010105A
公开(公告)日：2002-02-02
申请号：KR1020010045456
申请日：2001-07-27
申请人： 유니버시티 오브 로체스터 , 크레던스 시스템스 코포레이션
发明人： 소볼루스키로만 , 골츠만그리고리엔. , 세메노브알렉세이디. , 오쿠네브올레그브이. , 윌셔케니쓰알. , 카사피스티븐에이.
IPC分类号： G01J1/00
CPC分类号： H01L39/10 , G01J1/0209 , G01J1/0252 , G01J1/0411 , G01J1/42 , H01L31/101
摘要： PURPOSE: A super conducting single photon detector is provided to enhance a photo detector by supplying a signal photon and time separating detector having a fine quantum effect with respect to a photon on a wave length from a visible ray spectrum area to a far infrared radiation spectrum area. CONSTITUTION: An SSPD(super conducting single photon detector)(12) is an NbN(niobium nitride) film having 200-nm width, 1-micrometer length, and a 5-nm thickness. A light source(11) outputs an optical pulse(16) to a beam splitter(62). The beam splitter(62) divides a beam into an attenuator(63) and a photo detector(64). The light source(11) generates a short optical pulse per about 76MHz in the case of a mode lock IR laser from a coherent laser group. The light source(11) generates a short optical pulse per about 82MHz in the case of a mode lock laser from a spectra-physics(tsunami laser). A wavelength of the photon from the light source(11) is about 810nm. The attenuator(63) is a series of suction filters used for decreasing the number of photons which is being inputted on the SSPD(12) less than an average one photon per a pulse.
摘要翻译：目的：提供超导单光子检测器，通过提供一个信号光子和相对于从可见光谱区域到远红外辐射光谱的波长上的光子具有精细量子效应的时间分离检测器来增强光电检测器区。构成：SSPD（超导单光子检测器）（12）是具有200nm宽，1微米长和5nm厚度的NbN（氮化铌）膜。光源（11）将光脉冲（16）输出到分束器（62）。分束器（62）将光束分成衰减器（63）和光电检测器（64）。在来自相干激光组的模式锁定IR激光器的情况下，光源（11）产生大约76MHz的短光脉冲。在来自光谱 - 物理（海啸激光）的模式锁定激光器的情况下，光源（11）产生约82MHz的短光脉冲。来自光源（11）的光子的波长为约810nm。衰减器（63）是一系列抽吸滤波器，用于减少在每个脉冲上小于平均一个光子的SSPD（12）上输入的光子数量。

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