Three-level atomic system in a strongly resonant biharmonic light field and a weak probe field at an adjacent transition

L. F. Vitushkin, S. V. Lazaryuk, S. A. Pulkin +1 more

S. A. Pulkin, Svetlana Uvarova, Evald E. Fradkin

A three-level atomic system with a strong three-mode field and a probing biharmonic field at transitions 1→2 and 1⇆3 (1 is a common lower level), respectively, is studied theoretically by numerical simulation and an analysis of the mathematical expressions derived for the particular case of a symmetric arrangement of the strong field components relative to the transition frequency ω 21 . The absorption spectrum of the probing field components contains parametric supernarrow resonances against the background of resonances of the nonlinear interference effect. The ratios of the differences in the frequencies of the strong and probing fields, at which the supernarrow resonances appear, are found analytically. The results coincide with those obtained from numerical simulation.

V. Hizhnyakov, M. G. Rozman

Svetlana Uvarova, S. A. Pulkin, L.Y. Abramova +1 more

Summary form only given, as follows. One of the leading directions of nonlinear laser spectroscopy is a study of interaction of radiation with material. The purpose of the work is to research effects of amplification of radiation without creation of initial inversion of population levels in three-level atomic media. Calculation of generation parameters in three-level systems on the main transition will allow to get a generation at frequencies where creating the usual lasers is difficult (ultraviolet and X-ray area).

Vladimir G. Minogin, Yu. Rozhdestvensky

Л. С. Гайда, Iosif S. Zeilikovich, S. A. Pulkin