Slow and stored light in an amplifying double-Lambda system.
We show analytically and numerically that a double-Lambda system, characterized by parametric amplification of cross-coupled probe and four-wave mixing pulses, is an excellent medium for producing both slow and stored light. Moreover, this system can compensate for the absorption and broadening processes that usually occur without destroying the coherent properties of the medium. The stored probe signal pulse is written by means of a simple Lambda system and is retrieved and amplified, at the same frequency, by a double-Lambda system that also produces a pulse at the four-wave mixing frequency.
Eilam
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Department of Chemistry, Bar-Ilan University, Ramat Gan 52900, Israel.
Wilson-Gordon
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Friedmann
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