Sagnac Interferometry in a Slow-Light Medium
Atomic Physics
2009-11-11 v1 Optics
Abstract
We use a Sagnac interferometer to measure the dispersive and absorptive properties of room temperature Rubidium vapor on the D_2 line at 780.2 nm. We apply a pump beam such that the resulting Lambda system exhibits Electromagnetically Induced Transparency. Using a "biased alignment" technique we demonstrate a direct and robust method of measuring the rapid variation in the refractive index. Such a "slow-light" Sagnac interferometer is ideally suited to precision measurement applications such as magnetometry and inertial sensing.
Keywords
Cite
@article{arxiv.physics/0512126,
title = {Sagnac Interferometry in a Slow-Light Medium},
author = {Graham T. Purves and Charles S. Adams and Ifan G. Hughes},
journal= {arXiv preprint arXiv:physics/0512126},
year = {2009}
}
Comments
4 pages and 4 figures