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arXiv · 1007.4425

Influence of diffusion of atoms on the dark resonance lineshape in spatially bounded laser fields

V. I. Romanenko·A. V. Romanenko·L. P. Yatsenko
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Abstract

We propose a diffusion model for the recently discovered diffusion-induced Ramsey narrowing arising when atoms diffuse in a buffer-gas cell in the laser radiation field. The diffusion equation for the coherence of metastable states coupled with an excited state by laser radiation of different frequencies in a three-level scheme of the atom-field interaction is obtained in the strong-collision approximation. The dependence of the shape of an absorption line near the transmission maximum of one of the frequencies on the two-photon resonance detuning for various geometries of the cell is investigated.

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V. I. Romanenko, A. V. Romanenko, L. P. Yatsenko. 2010-07-26. Influence of diffusion of atoms on the dark resonance lineshape in spatially bounded laser fields. https://arxiv.org/abs/1007.4425

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