Identifying the orbital angular momentum of light based on atomic ensembles
Atomic Physics
2012-08-16 v1 Optics
Quantum Physics
Abstract
We propose a scheme to distinguish the orbital angular momentum state of the Laguerre-Gaussian (LG) beam based on the electromagnetically induced transparency modulated by a microwave field in atomic ensembles. We show that the transverse phase variation of a probe beam with the LG mode can be mapped into the spatial intensity distribution due to the change of atomic coherence caused by the microwave. The proposal may provide a useful tool for studying higher-dimensional quantum information based on atomic ensembles.
Cite
@article{arxiv.1207.2299,
title = {Identifying the orbital angular momentum of light based on atomic ensembles},
author = {Liang Han and Mingtao Cao and Ruifeng Liu and Hao Liu and Wenge Guo and Dong Wei and Shaoyan Gao and Pei Zhang and Hong Gao},
journal= {arXiv preprint arXiv:1207.2299},
year = {2012}
}
Comments
4 pages, 4 figures