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Optics Communications

Bragg-matching characterization of atomic coherence gratings in an electromagnetically induced transparency solid with a confocal scheme

Zhaohui Zhai, Yanfei Tu, Yiling Dou, Jingjun Xu, Guoquan Zhang

Published Sep 26, 2011• 3 citations
Publisher
DOI
10.1016/j.optcom.2011.09.025

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A nondegenerate phase-conjugate wave was generated via stored atomic coherence in a Pr3+:Y2SiO5{\mathrm{Pr}}^{3+}:{\mathrm{Y}}_{2}{\mathrm{SiO}}_{5}Pr3+:Y2​SiO5​ crystal based on the electromagnetically induced transparency effect, and its capability for wave-front reconstruction of phase distortion was demonstrated experimentally. The phase-matching condition during the storage-retrieval process of the phase-conjugate wave was characterized both experimentally and theoretically in detail. Theoretical simulations fit the experimental data very well. Such a scheme of storage and retrieval of the phase-conjugate wave may have potential applications in optical signal processing and information security.