Volume 5 Issue 5
Oct.  2012
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KUANG Shang-qi. Raman gain grating in an ultracold atomic medium[J]. Chinese Optics, 2012, 5(5): 464-469. doi: 10.3788/CO.20120505.0464
Citation: KUANG Shang-qi. Raman gain grating in an ultracold atomic medium[J]. Chinese Optics, 2012, 5(5): 464-469. doi: 10.3788/CO.20120505.0464

Raman gain grating in an ultracold atomic medium

doi: 10.3788/CO.20120505.0464
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  • Author Bio:

    KUANG Shang-qi(1981-), Associate researcher, Ph.D., Changchun Institute of Optics, Fine Mechanic and Physics, Chinese Academy of Sciences, China. His research interests include quantum optics and optical thin film. E-mail:physicskuang@sina.com

  • Received Date: 22 Jun 2012
  • Rev Recd Date: 20 Aug 2012
  • Publish Date: 10 Oct 2012
  • This paper demonstrates theoretically that a Raman gain grating can be formed in an ultracold atomic medium driven by a standing wave and a probe field. Due to the spatial modulation of active Raman gain, the weak probe field propagating along the direction normal to the standing wave can be diffracted into the first-order direction effectively, and the zero-order diffracted beam is also amplified. Under manipulation by a microwave field, the first-order diffraction efficiency can be improved to be higher than that of electromagnetically induced phase grating. This system can be used as a highly efficient switch for an all-optical network.

     

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