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

V. V. Khromov; N. B. Leonov; S. G. Przhibel'skii; V. N. Smirnov; E. V. Vaschenko; T. A. Vartanyan

doi:10.1117/12.752372

10 July 2007 Laser spectroscopy of atoms approaching a surface of ionic crystalline material: evidence of pure dephasing due to stochastic near fields

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

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Proceedings Volume 6727, ICONO 2007: Nonlinear Laser Spectroscopy and High-Precision Measurements; and Fundamentals of Laser Chemistry and Biophotonics; 67271I (2007) https://doi.org/10.1117/12.752372
Event: The International Conference on Coherent and Nonlinear Optics, 2007, Minsk, Belarus

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.

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V. V. Khromov, N. B. Leonov, S. G. Przhibel'skii, V. N. Smirnov, E. V. Vaschenko, and T. A. Vartanyan "Laser spectroscopy of atoms approaching a surface of ionic crystalline material: evidence of pure dephasing due to stochastic near fields", Proc. SPIE 6727, ICONO 2007: Nonlinear Laser Spectroscopy and High-Precision Measurements; and Fundamentals of Laser Chemistry and Biophotonics, 67271I (10 July 2007); https://doi.org/10.1117/12.752372

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