99 citations · 265 across the 6 of their papers we have counts for
6 papers
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…
Operating quantum waveguide circuits with superconducting single-photon detectors
C. M. Natarajan, A. Peruzzo, S. Miki +6
Advanced quantum information science and technology (QIST) applications place exacting de- mands on optical components. Quantum waveguide circuits offer a route to scalable QIST on…
Experimental Determination of the Gain Distribution of an Avalanche Photodiode at Low Gains
Kenji Tsujino, Makoto Akiba, Masahide Sasaki
A measurement system for determining the gain distributions of avalanche photodiodes (APDs) in a low gain range is presented. The system is based on an ultralow-noise charge--sensi…
A multipixel silicon APD with ultralow dark count rate at liquid nitrogen temperature
M. Akiba, K. Tsujino, K. Sato +1
The dark count rate of a multipixel photon counter (MPPC) was reduced to less than 0.2 cps by cooling the counter to 78.5 K. Characteristics of the MPPC other than the dark count r…
7 dB quadrature squeezing at 860 nm with periodically-poled KTiOPO4
Shigenari Suzuki, Hidehiro Yonezawa, Fumihiko Kannari +2
We observed -7.2 dB quadrature squeezing at 860 nm by using a sub-threshold continuous-wave pumped optical parametric oscillator with a periodically-poled KTiOPO4 crystal as a nonl…
Theory of multiwave mixing and decoherence control in qubit array system
M. Sasaki, A. Hasegawa, J. I. Hayase +2
We develop a theory to analyze the decoherence effect in a charged qubit array system with photon echo signals in the multiwave mixing configuration. We present how the decoherence…