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Eur. Phys. J. D 12, 403-413

Mechanical bistability in an optical lattice

P.M. Visser - G. Grynberg

Laboratoire Kastler-Brossel, Unité de recherche de l'École Normale Supérieure et de l'Université Pierre et Marie Curie,
24 rue Lhomond, 75231 Paris Cedex 05, France
paul.visser@lkb.ens.fr

Received 23 May 2000 and Received in final form 17 August 2000

Abstract
A probed optical lattice is modelled as a driven anharmonic oscillator with noise. For specific values of the probe intensity and detuning, atoms are forced in bistable solutions. The friction and fluctuations that arise from laser cooling, determine the equilibrium between these two modes of vibration. The distribution determines the absorption spectrum and the transient emission spectrum that is emitted by the optical lattice after the probe has been switched off.

PACS
32.80.Lg Mechanical effects of light on atoms, molecules, and ions - 42.50.Md Optical transient phenomena: quantum beats, photon echo, free-induction decay, dephasings and revivals, optical nutation, and self-induced transparency - 42.65.Pc Optical bistability, multistability, and switching

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