The goal of this research is to determine and study a physical system that will enable a fast and intrinsically two-photon detector, which would be of interest for quantum information and metrology applications. We consider two types of two-photon processes that can be observed using a very faint, but quantum-correlated biphoton field. These are optical up-conversion and an external photoelectric effect. We estimate the correlation enhancement factor for the biphoton light compared to coherent light, report and discuss the preliminary experimental results.
@article{arxiv.quant-ph/0203129,
title = {Two-photon processes in faint biphoton fields},
author = {Dmitry V. Strekalov and Matt Stowe and Maria V. Chekhova and Jonathan P. Dowling},
journal= {arXiv preprint arXiv:quant-ph/0203129},
year = {2009}
}
Comments
18 pages, 10 figures, proceeding of Physics of Quantum Electronics 2002, to appear in J.Mod.Opt