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Diffusion-induced Ramsey narrowing

Yanhong Xiao·Irina Novikova·David F. Phillips·Ronald L. Walsworth
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Abstract

A novel form of Ramsey narrowing is identified and characterized. For long-lived coherent atomic states coupled by laser fields, the diffusion of atoms in-and-out of the laser beam induces a spectral narrowing of the atomic resonance lineshape. Illustrative experiments and an intuitive analytical model are presented for this diffusion-induced Ramsey narrowing, which occurs commonly in optically-interrogated systems.

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Yanhong Xiao, Irina Novikova, David F. Phillips, Ronald L. Walsworth. 2005-07-19. Diffusion-induced Ramsey narrowing. https://doi.org/10.1103/physrevlett.96.043601

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