[19p-C207-1~17] 11.4 Analog applications and their related technologies

△ [19p-C207-16] Development of a superconducting nanowire single-photon detector for 900-1100 nm photon detection

〇(P)Fumihiro China¹, Masahiro Yabuno¹, Shigehito Miki^1,2, Hirotaka Terai¹ (1.NICT, 2.Kobe Univ.)

Keywords:superconducting nanowire single-photon detectors, dielectric multilayer

In this study, we have been developing superconducting nanowire single-photon detectors (SSPDs) for wavelength 900nm-1100nm band, which is difficult to detect photons with the semiconductor avalanche photodiode. In order to maximize the photon detection efficiency in the target wavelength range, the SSPDs were fabricated on a dielectric multilayer. In addition, the dependence of the photon detection efficiency of SSPD on wavelength was measured by using a supercontinuum light source, and it was confirmed that the optical characteristics of the dielectric multilayer well appeared in the measurement results.