Ultrabroadband, Direct Detection of Nonclassical Photon Statistics in Parametric Fluorescence at Telecom Wavelength
Kentaro Wakui, Yujiro Eto, Tetsufumi Yanagida, Hugo Benichi, Shuro Izumi, Kazuhiro Ema, Takayuki Numata, Daiji Fukuda, Masahide Sasaki · 2013
Ultrabroadband photon-number-resolving detection is demonstrated for parametric fluorescence ranging over 150 nm in the telecom window, using a Ti transition edge sensor. Our results violate Klyshko’s classical limit for even photon numbers.