Very large optical rotation generated by Rb vapor in a multi-pass cell
Atomic Physics
2011-08-29 v1 Quantum Physics
Abstract
Paramagnetic Faraday rotation is a powerful technique for atom sensing widely used in quantum non-demolition measurements, fundamental symmetry tests, and other precision measurements. We demonstrate the use of a multi-pass optical cell for Faraday rotation spectroscopy and observe polarization rotation in excess of 100 radians from spin-polarized Rb vapor. Unlike optical cavities, multi-pass cells have a deterministic number of light passes and can be used to measure large optical rotations. We also observe a 10-fold suppression of transverse spin relaxation when Rb atoms are placed in a coherent superposition state immune to spin-exchange collisions.
Keywords
Cite
@article{arxiv.1108.5334,
title = {Very large optical rotation generated by Rb vapor in a multi-pass cell},
author = {S. Li and P. Vachaspati and D. Sheng and N. Dural and M. V. Romalis},
journal= {arXiv preprint arXiv:1108.5334},
year = {2011}
}
Comments
4 pages, 4 figures