[21a-W833-1~12] 11.4 Analog applications and their related technologies

[21a-W833-7] Single photon spectroscopy with superconducting transition edge sensors

〇Daiji Fukuda^1,2, Kazuki Niwa¹, Ryo Kobayashi^1,2, Takayuki Numata¹, Minoru Tanabe¹, Satoshi Kohjiro¹, Shuichiro Inoue² (1.AIST, 2.Nihon Univ.)

Keywords:superconducting transition edge sensor,wavelength resolution,single photon measurement

New single photon spectroscopy technique has been developed based on energy dispersive detectors. We have succeeded to obtain 24 nm wavelength resolution for photons in wavelength of 405 nm. This technique can be used to various application such as single photon spectroscopy at extremely week photon intensity.