Superconducting-nanowire single-photon-detector linear array
نویسندگان
چکیده
منابع مشابه
Multi-element superconducting nanowire single photon detectors
Single-photon-detector arrays can provide unparalleled performance and detailed information in applications that require precise timing and single photon sensitivity. Such arrays have been demonstrated using a number of single-photon-detector technologies, but the high performance of superconducting nanowire single photon detectors (SNSPDs) and the unavoidable overhead of cryogenic cooling make...
متن کامل1.25-Gbit/s photon-counting optical communications using a two- element superconducting nanowire single photon detector
The sensitivity of a high-rate photon-counting optical communications link depends on the performance of the photon counter used to detect the optical signal. In this paper, we focus on ways to reduce the effect of blocking, which is loss due to time periods in which the photon counter is inactive following a preceding detection event. This blocking loss can be reduced by using an array of phot...
متن کاملEnhancing Detection Efficiency by Applying an Optical Cavity Structure in a Superconducting Nanowire Single-Photon Detector
We report on the enhancement of system detection efficiency in a superconducting nanowire single-photon detector (SNSPD) by applying the optical cavity structure. The nanowire was made using 4nm-thick NbN thin films and covered with an SiO cavity and Au mirror designed for 1300–1600 nm wavelengths. The device is mounted into fibercoupled packages, and installed in a practical multichannel syste...
متن کاملProperties of Cascade Switch Superconducting Nanowire Single Photon Detectors
Superconducting nanowire single photon detectors have been realized using an innovative photon induced cascade switch of parallel nanowires. We demonstrate that this configuration allows, at the same time, a fast response and a large active area, with the additional advantage of signal pulses with a larger signal to noise ratio. These improvements are obtained maintaining the good quantum effic...
متن کاملExperimental test of theories of the detection mechanism in a nanowire superconducting single photon detector.
We report an experimental test of the photodetection mechanism in a nanowire superconducting single photon detector. Detector tomography allows us to explore the 0.8-8 eV energy range via multiphoton excitations. High accuracy results enable a detailed comparison of the experimental data with theories for the mechanism of photon detection. We show that the temperature dependence of the efficien...
متن کامل