| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Polarization Rotation via Asymmetric Optical Pumping |
| YANG Xu-Dong**, LI Chuan-Liang, CHEN Feng-Hua |
School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024
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| Cite this article: |
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YANG Xu-Dong, LI Chuan-Liang, CHEN Feng-Hua 2014 Chin. Phys. Lett. 31 114204 |
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Abstract The polarization rotation of a linearly polarized optical (probe) field caused by a left-circularly polarized pumping beam is studied in an opened two-level system of a 87Rb atom. Letting a linearly polarized optical field (probe) and left-circularly polarized pumping beams co-propagate through a Rb vapor, we observe the featurable polarization rotation signals of the linearly polarized probe field via the asymmetric optical pumping with low intensities. Based on this phenomenon, a polarization-controlled light switching can be demonstrated at a low light level. Such a scheme of polarization rotation can be extended in a solid or semi-conduct material and find a practical application in all-optical information processing.
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Published: 28 November 2014
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| PACS: |
42.50.Ct
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(Quantum description of interaction of light and matter; related experiments)
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42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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42.25.Ja
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(Polarization)
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