Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Laser spectroscopy of atoms approaching a surface of ionic crystalline material: evidence of pure dephasing due to stochastic near fields

V. V. Khromov, Nikita B. Leonov, Sergey G. Przhibel'skii, Valentin N. Smirnov, E. V. Vaschenko, T. A. Vartanyan

Published Jun 15, 2007• 0 citations

Abstract

The shape of the luminescence spectrum of Cs atoms flying near a sapphire surface is explored experimentally and described phenomenologically for the detuning range of 5 to 50 cm-1 on both sides of D2 line. The numerical fitting of one theoretical parameter and a small variation of another parameter ensure a satisfactory agreement with the experimental spectrum. The experimentally determined abnormally high intensity of the antistatic wing is explained by the effect of phase relaxation of the atomic transition, caused by fluctuations of the electric field of oscillating ions of the sapphire crystal lattice.

DOI: 10.1117/12.752372

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