Cooperative dynamics of an ensemble of atoms with lambda-scheme of levels driven by two resonant laser fields

I. A. Grigorenko; Boris G. Matisov

doi:10.1117/12.299585

1 January 1998 Cooperative dynamics of an ensemble of atoms with Λ-scheme of levels driven by two resonant laser fields

I. A. Grigorenko, Boris G. Matisov

Proceedings Volume 3345, International Workshop on New Approaches to High-Tech Materials: Nondestructive Testing and Computer Simulations in Materials Science and Engineering; (1998) https://doi.org/10.1117/12.299585
Event: International Workshop on New Approaches to High Tech Materials: Nondestructive Testing and Computer Simulations in Materials Science and Engineering, 1997, St. Petersburg, Russian Federation

Abstract

We derive the equations describing the dynamics of an ensemble of atoms with (Lambda) - scheme of levels driven by two coherent resonant fields in a case when cooperative relaxation prevails over usual incoherent spontaneous emission. We investigate numerically temporal dynamics of mean values of the collective atomic operators. When the two-photon resonance condition is fulfilled then all atoms tend to be trapped in a coherent dark state, so coherent population trapping arises in a case of cooperative decay. Most important values characterizing this phenomenon such as the width of the black line and the time of initial transient stage of evolution are evaluated.

Citation Download Citation

I. A. Grigorenko and Boris G. Matisov "Cooperative dynamics of an ensemble of atoms with Λ-scheme of levels driven by two resonant laser fields", Proc. SPIE 3345, International Workshop on New Approaches to High-Tech Materials: Nondestructive Testing and Computer Simulations in Materials Science and Engineering, (1 January 1998); https://doi.org/10.1117/12.299585

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