Room-Temperature Photon-Number-Resolving Detection Without Room-Temperature Photon-Number-Resolving Detectors
Elisha S. Matekole, Hwang Lee, Jonathan P. Dowling · arXiv (Cornell University) · 2017
We study the average coincidence-count signal at the output of a two-mode squeezing device with $|N\rangle\otimes|\alpha\rangle$ as the two input modes. We show that the input photon-number can be resolved from the average coincidence counts. In particular, we show jumps in the average coincidence-count signal as a function of input photon-number $N$. Therefore, we propose that such a device may be deployed as photon-number-resolving detector at room temperature with high efficiency.