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Simultaneous self-focusing of two laser beams in a subthreshold coherent population trapping regime

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Abstract

The propagation of two-component laser radiation in a medium consisting of atoms with a Λ level scheme is investigated. The simultaneous self-focusing of two beams is considered. The main features of this phenomenon are: 1) lowering of the self-focusing threshold by several orders of magnitude in comparison with the known case of saturation of a transition in a two-level atom; 2) a strong dependence of the character of the propagation of the radiation on the difference between the detunings of the two frequency components of the field from resonance, which is associated with fulfillment of the two-photon resonance condition.

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Authors and Affiliations

  1. St. Petersburg State Technical University, 195251, St. Petersburg, Russia

    I. V. Kazinets, B. G. Matisov & A. Yu. Snegirev

Authors
  1. I. V. Kazinets
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  2. B. G. Matisov
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  3. A. Yu. Snegirev
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Zh. Tekh. Fiz. 67, 126–129 (July 1997)

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Kazinets, I.V., Matisov, B.G. & Snegirev, A.Y. Simultaneous self-focusing of two laser beams in a subthreshold coherent population trapping regime. Tech. Phys. 42, 837–840 (1997). https://doi.org/10.1134/1.1258729

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  • DOI: https://doi.org/10.1134/1.1258729

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