Published January 9, 2009
| Published
Journal Article
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Realization of an all-optical zero to π cross-phase modulation jump
Abstract
We report on the experimental demonstration of an all-optical π cross-phase modulation jump. By performing a preselection, an optically induced unitary transformation, and then a postselection on the polarization degree of freedom, the phase of the output beam acquires either a zero or π phase shift (with no other possible values). The postselection results in optical loss in the output beam. An input state may be chosen near the resulting phase singularity, yielding a pi phase shift even for weak interaction strengths. The scheme is experimentally demonstrated using a coherently prepared dark state in a warm atomic cesium vapor.
Additional Information
©2009 The American Physical Society. Received 15 May 2008; published 5 January 2009. This work was supported by DARPA DSO Slow Light, a DOD PECASE, and the University of Rochester.Attached Files
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Additional details
- Eprint ID
- 12878
- Resolver ID
- CaltechAUTHORS:CAMprl09
- Defense Advanced Research Projects Agency
- Department of Defense
- University of Rochester
- Created
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2009-01-07Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field