[16p-A405-1~15] 3.9 Optical quantum physics and technologies (formerly 3.10)

△ [16p-A405-7] Energy spectrum measurement for mid-infrared photons with TES

〇(M2)Ryosuke Shimada^1,2, Yuki Mitsuya^3,4, Sachiko Takasu², Kaori Hattori^2,4,5, Daiji Fukuda^2,4 (1.Tohoku Univ., 2.AIST, 3.Univ. of Tokyo, 4.OPERANDO-OIL, 5.KEK QUP)

Keywords:mid-infrared lights, supercunductor, photon

Light in the mid-infrared wavelength region is expected to be used for various applications such as infrared fluorescence analysis and infrared quantum communications. On the other hand, there are few single-photon detectors with high performance in the mid-infrared region. In this study, we investigate the possibility of single-photon spectroscopic detection in the mid-infrared region using a superconducting transition edge sensor (TES) with high energy resolution. Mid-infrared photons from blackbody radiation sources at various temperatures were introduced into the TES, and good agreement with theoretical blackbody radiation spectra was obtained.