Abstract
A nondegenerate phase-conjugate wave was generated via stored atomic coherence in a Pr{sup 3+}:Y{sub 2}SiO{sub 5} 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.
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