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Abstract: We theoretically investigate image propagation and storage in hot atomicvapor. A $4f$ system is adopted for imaging and an atomic vapor cell is placedover the transform plane. The Fraunhofer diffraction pattern of an object inthe object plane can thus be transformed into atomic Raman coherence accordingto the idea of ``light storage-. We investigate how the stored diffractionpattern evolves under diffusion. Our result indicates, under appropriateconditions, that an image can be reconstructed with high fidelity. The mainreason for this procedure to work is the fact that diffusion of opposite-phasecomponents of the diffraction pattern interfere destructively.

Autor: L. Zhao, T. Wang, Y. Xiao, S. F. Yelin


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