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Controlled polarization rotation of an optical field in multi-Zeeman-sublevel atoms

Shujing Li·Bo Wang·Xudong Yang·Yanxu Han·Hai Wang·Min Xiao·K. C. Peng
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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.

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Shujing Li, Bo Wang, Xudong Yang, Yanxu Han, Hai Wang, Min Xiao, K. C. Peng. 2006-08-30. Controlled polarization rotation of an optical field in multi-Zeeman-sublevel atoms. https://doi.org/10.1103/physreva.74.033821

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