Phillips, Nathaniel B. and Gorshkov, Alexey V. and Novikova, Irina (2011) Light storage in an optically thick atomic ensemble under conditions of electromagnetically induced transparency and four-wave mixing. Physical Review A, 83 (6). Art. No. 063823. ISSN 1050-2947 http://resolver.caltech.edu/CaltechAUTHORS:20110707-082949380
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We study the modification of a traditional electromagnetically induced transparency (EIT) stored-light technique that includes both EIT and four-wave mixing (FWM) in an ensemble of hot Rb atoms. The standard treatment of light storage involves the coherent and reversible mapping of one photonic mode onto a collective spin coherence. It has been shown that unwanted, competing processes such as four-wave mixing are enhanced by EIT and can significantly modify the signal optical pulse propagation. We present theoretical and experimental evidence to indicate that, while a Stokes field is indeed detected upon retrieval of the signal field, any information originally encoded in a seeded Stokes field is not independently preserved during the storage process. We present a simple model that describes the propagation dynamics of the fields and the impact of FWM on the spin wave.
|Additional Information:||© 2011 American Physical Society. Received 10 March 2011; published 20 June 2011. The authors thank M. D. Lukin for helpful discussions. AVG wishes to acknowledge support from the Lee A. DuBridge Foundation. This research was supported by NSF grants No. PHY-0803371 and No. PHY-0758010, the Jeffress Research Grant J-847, and the College of William & Mary.|
|Classification Code:||PACS: 42.50.Gy, 32.70.Jz, 42.50.Md|
|Official Citation:||Light storage in an optically thick atomic ensemble under conditions of electromagnetically induced transparency and four-wave mixing Nathaniel B. Phillips, Alexey V. Gorshkov, and Irina Novikova Published 20 June 2011 (12 pages) 063823|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||11 Jul 2011 14:55|
|Last Modified:||26 Dec 2012 13:22|
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