[12p-N103-1~16] 3.10 Optical quantum physics and technologies

△ [12p-N103-8] The evaluation of superconducting nanowire single photon detectors for mid-infrared wavelengths

〇Yuki Gama¹, Toshiyuki Tashima¹, Masaya Arahata¹, Yusuke Yamada¹, Yu Mukai¹, Fumihiro China², Masahiro Yabuno², Satoru Mima², Shigeyuki Miyazaki², Shigehito Miki², Hirotaka Terai², Ryo Okamoto¹, Shigeki Takeuchi¹ (1.Kyoto Univ., 2.NICT)

Keywords:superconducting nanowire single photon detector, mid-infrared, detector efficiency

In this research, we evaluated superconducting nanowire single photon detectors, which are fabricated using NbTiN as superconducting nanowire materials for mid-infrared wavelengths. As a result, we confirmed mid-infrared single photon detection. Recently, quantum technologies utilizing photons at mid-infrared wavelengths have become interesting topics. This research makes such technologies more developed through the capability of mid-infrared quantum light sources evaluation and high detection sensitivity.