Refractive Index Enhancement with Vanishing Absorption in an Atomic Vapor
Quantum Physics
2009-01-09 v1 Optics
Abstract
We report a proof-of-principle experiment where the refractive index of an atomic vapor is enhanced while maintaining vanishing absorption of the beam. The key idea is to drive alkali atoms in a vapor with appropriate control lasers and induce a gain resonance and an absorption resonance for a probe beam in a two-photon Raman configuration. The strength and the position of these two resonances can be manipulated by changing the parameters of the control lasers. By using the interference between these two resonances, we obtain an enhanced refractive index without an increase in the absorption.
Keywords
Cite
@article{arxiv.0807.2584,
title = {Refractive Index Enhancement with Vanishing Absorption in an Atomic Vapor},
author = {N. A. Proite and B. E. Unks and J. T. Green and D. D. Yavuz},
journal= {arXiv preprint arXiv:0807.2584},
year = {2009}
}
Comments
11 pages, 4 figures