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Title: Electromagnetically-induced-transparency-based paired photon generation

Abstract

We describe the theory of paired photon generation in a double-{lambda} atomic system. Using the Heisenberg-Langevin formalism we evaluate and analyze the spectral generation rates and intensity correlation function for the output fields. Different regimes of parametric down conversion are analyzed. We discuss the influence of the optical depth and Langevin noise fluctuations on the paired photon generation and predict that at the optical depth of 100 or more the contribution of Langevin noise fluctuations is small and therefore Stokes and anti-Stokes photons are generated mostly in pairs. Comparison between the theory and experiments shows good agreement.

Authors:
 [1]
  1. Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305 (United States)
Publication Date:
OSTI Identifier:
20982405
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevA.75.033814; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; COMPARATIVE EVALUATIONS; CORRELATION FUNCTIONS; FLUCTUATIONS; HARMONIC GENERATION; LIGHT TRANSMISSION; LUMINESCENCE; OPACITY; PHOTON-ATOM COLLISIONS; PHOTONS

Citation Formats

Kolchin, Pavel. Electromagnetically-induced-transparency-based paired photon generation. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.033814.
Kolchin, Pavel. Electromagnetically-induced-transparency-based paired photon generation. United States. doi:10.1103/PHYSREVA.75.033814.
Kolchin, Pavel. Thu . "Electromagnetically-induced-transparency-based paired photon generation". United States. doi:10.1103/PHYSREVA.75.033814.
@article{osti_20982405,
title = {Electromagnetically-induced-transparency-based paired photon generation},
author = {Kolchin, Pavel},
abstractNote = {We describe the theory of paired photon generation in a double-{lambda} atomic system. Using the Heisenberg-Langevin formalism we evaluate and analyze the spectral generation rates and intensity correlation function for the output fields. Different regimes of parametric down conversion are analyzed. We discuss the influence of the optical depth and Langevin noise fluctuations on the paired photon generation and predict that at the optical depth of 100 or more the contribution of Langevin noise fluctuations is small and therefore Stokes and anti-Stokes photons are generated mostly in pairs. Comparison between the theory and experiments shows good agreement.},
doi = {10.1103/PHYSREVA.75.033814},
journal = {Physical Review. A},
number = 3,
volume = 75,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}
  • Generation of counterpropagating paired Stokes and anti-Stokes photons at the two-photon level in an electromagnetically induced transparency system is examined in quantum theory. In particular, we focus on the transverse effects of generated entangled photon pairs. Using first-order perturbation theory, we have studied the two-photon state including the phase matching conditions. The comparison of single photon counting and two-photon coincidence counting measurement is provided, which show some interesting properties.
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