Controlled polarization rotation of an optical field in multi-Zeeman-sublevel atoms
Abstract
We investigate, both theoretically and experimentally, the phenomenon of polarization rotation of a weak, linearly-polarized optical (probe) field in an atomic system with multiple three-level electromagnetically induced transparency (EIT) sub-systems. The polarization rotation angle can be controlled by a circularly-polarized coupling beam, which breaks the symmetry in number of EIT subsystems seen by the left- and right-circularly-polarized components of the weak probe beam. A large polarization rotation angle (up to 45 degrees) has been achieved with a coupling beam power of only 15 mW. Detailed theoretical analyses including different transition probabilities in different transitions and Doppler-broadening are presented and the results are in good agreements with the experimentally measured results.
Keywords
Cite
@article{arxiv.quant-ph/0608234,
title = {Controlled polarization rotation of an optical field in multi-Zeeman-sublevel atoms},
author = {Shujing Li and Bo Wang and Xudong Yang and Yanxu Han and Hai Wang and Min Xiao and K. C. Peng},
journal= {arXiv preprint arXiv:quant-ph/0608234},
year = {2009}
}
Comments
28pages, 12figures