The European Physical Journal D

, Volume 58, Issue 1, pp 69–73

Modification of radiation pressure due to cooperative scattering of light

Authors

  • Ph. W. Courteille
    • Physikalisches Institut, Universität Tübingen
    • Instituto de Física de São Carlos, Universidade de São Paulo
    • Institut Non Linéaire de Nice, CNRS and Université de Nice Sophia-Antipolis
  • S. Bux
    • Physikalisches Institut, Universität Tübingen
    • Institut Non Linéaire de Nice, CNRS and Université de Nice Sophia-Antipolis
  • E. Lucioni
    • Institut Non Linéaire de Nice, CNRS and Université de Nice Sophia-Antipolis
    • Dipartimento di FisicaUniversità Degli Studi di Milano
  • K. Lauber
    • Physikalisches Institut, Universität Tübingen
  • T. Bienaimé
    • Institut Non Linéaire de Nice, CNRS and Université de Nice Sophia-Antipolis
    • Institut Non Linéaire de Nice, CNRS and Université de Nice Sophia-Antipolis
  • N. Piovella
    • Dipartimento di FisicaUniversità Degli Studi di Milano
Atomic Physics

DOI: 10.1140/epjd/e2010-00095-6

Cite this article as:
Courteille, P., Bux, S., Lucioni, E. et al. Eur. Phys. J. D (2010) 58: 69. doi:10.1140/epjd/e2010-00095-6

Abstract

Cooperative spontaneous emission of a single photon from a cloud of N atoms modifies substantially the radiation pressure exerted by a far-detuned laser beam exciting the atoms. On one hand, the force induced by photon absorption depends on the collective decay rate of the excited atomic state. On the other hand, directional spontaneous emission counteracts the recoil induced by the absorption. We derive an analytical expression for the radiation pressure in steady-state. For a smooth extended atomic distribution we show that the radiation pressure depends on the atom number via cooperative scattering and that, for certain atom numbers, it can be suppressed or enhanced. Cooperative scattering of light by extended atomic clouds can become important in the presence of quasi-resonant light and could be addressed in many cold atoms experiments.

Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2010