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Abstract: We investigate the storage of light in an atomic sample with a lambda-typecoupling scheme driven by optical fields at variable two-photon detuning. Inthe presence of electromagnetically induced transparency EIT, light is storedand retrieved from the sample by dynamically varying the group velocity. It isfound that for any two-photon detuning of the input light pulse within the EITtransparency window, the carrier frequency of the retrieved light pulse matchesthe two-photon resonance frequency with the atomic ground state transition andthe control field. This effect which is not based on spectral filtering isinvestigated both theoretically and experimentally. It can be used forhigh-speed precision measurements of the two-photon resonance as employed e.g.in optical magnetometry.



Autor: Leon Karpa, Gor Nikoghosyan, Frank Vewinger, Michael Fleischhauer, Martin Weitz

Fuente: https://arxiv.org/







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