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Low-Filling-Factor Superconducting Single Photon Detector with High System Detection Efficiency
Taro Yamashita, Shigehito Miki, Hirotaka Terai +1
We designed, fabricated, and measured superconducting nanowire single-photon detectors (SSPDs) with low filling factor which achieve high system detection efficiency (SDE) and coun…
Nonlatching Superconducting Nanowire Single-Photon Detection with Quasi-Constant-Voltage Bias
Deng-Kuan Liu, Si-Jing Chen, Li-Xing You +5
Latching is a serious issue in superconducting nanowire single-photon detector (SNSPD) technology. By extensively studying the electrical transportation characteristics of SNSPD wi…
Origin of intrinsic dark count in superconducting nanowire single-photon detectors
T. Yamashita, S. Miki, K. Makise +5
The origin of the decoherence in superconducting nanowire single-photon detectors, the so-called dark count, was investigated. We measured the direct-current characteristics and bi…
Systematic characterization of upper critical fields for MgB thin films using the two-band superconducting theory
S. Noguchi, A. Kuribayashi, T. Ishida +9
We present experimental results of the upper critical fields of various MgB thin films prepared by the molecular beam epitaxy, multiple-targets sputtering, and co-…