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Theory of Nonlinear Optical Resonances Induced by Collisions

  • G. Grynberg
Conference paper
Part of the Springer Series in Optical Sciences book series (SSOS, volume 30)

Abstract

It has been suggested by Bloembergen [1] that new resonances should appear in four-wave mixing processes in the case of large damping. These resonances occur when the difference between the frequencies of two beams is equal to a Bohr frequency for two atomic levels which are not directly populated by the light excitation. They have recently been observed by Bloembergen and his coworkers [2]. The original treatment of Bloembergen [1] was performed with the optical Bloch equations. It is well known that the validity of these equations is restricted to a small frequency range where the impact approximation can be applied [3]. We present here the theory of these resonances using the dressed-atom model [3]. The two main advantages of the present theory [4] are (i) a larger range of validity, (ii) a direct comprehension of the physical origin of these resonances.

Keywords

Laser Spectroscopy Excited Level Potential Curve Population Transfer Optical Bloch Equation 
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References

  1. 1.
    N. Bloembergen: In Laser Spectroscopy IV, ed. by H. Walther, K.W. Rothe, Springer Series in Optical Sciences, Vol. 21 (Springer Berlin, Heidelberg, New York 1979 ) p. 340Google Scholar
  2. 2.
    N. Bloembergen, this book and ref thereinGoogle Scholar
  3. 3.
    S. Reynaud and C. Cohen-Tannoudji, this book and ref thereinGoogle Scholar
  4. 4.
    G. Grynberg, J.Phys.B. Atom.Mol.Phys. 14, 2089 (1981)ADSCrossRefGoogle Scholar
  5. 5.
    S. Yeh and P.R. Berman, Phys.Rev. A22, 1403 (1980) and A19, 1106 (1979)Google Scholar
  6. 6.
    G. Grynberg, Opt.Commun. 1981 (to be published)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1981

Authors and Affiliations

  • G. Grynberg
    • 1
  1. 1.Laboratoire d’Optique QuantiqueEcole PolytechniquePalaiseauFrance

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