Nonlinear effects in resonant SRS line in a gas in the field of a standing wave
Baklanov E. V. , Beterov I. M. , Dubetskii B. Ya. , Chebotaev V. P.
We report experimental observation of a resonance of a new type in multiphoton transitions in a standing-wave field in a Raman gas laser. The theory shows that the resonance takes place in third-order perturbation theory, when the resonant SRS line is inhomogeneously broadened and can be regarded as an effect overlapping the dips in the velocity distribution of the nonlinear polarization in the field-induced standing wave.