Time-reversed two-photon interferometry for phase super-resolution
Quantum Physics
2013-12-10 v1 Optics
Abstract
We observed two-photon phase super-resolution in an unbalanced Michelson interferometer with classical Gaussian laser pulses. Our work is a time-reversed version of a two-photon interference experiment using an unbalanced Michelson interferometer. A measured interferogram exhibits two-photon phase super-resolution with a high visibility of 97.9% \pm 0.4%. Its coherence length is about 22 times longer than that of the input laser pulses. It is a classical analogue to the large difference between the one- and two-photon coherence lengths of entangled photon pairs.
Keywords
Cite
@article{arxiv.1311.5037,
title = {Time-reversed two-photon interferometry for phase super-resolution},
author = {Kazuhisa Ogawa and Shuhei Tamate and Hirokazu Kobayashi and Toshihiro Nakanishi and Masao Kitano},
journal= {arXiv preprint arXiv:1311.5037},
year = {2013}
}
Comments
6 pages, 4 figures