Dispersion of a three-level quantum system in a bichromatic field |
| |
Authors: | A Ch Svistun L S Gaida A A Afanas’ev |
| |
Institution: | (1) Janka Kupala Grodno State University (Educational Institution), 22 ul. Ozheshko, Grodno, 230023, Belarus;(2) B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk |
| |
Abstract: | We consider aspects of the interaction between a V-type three-level quantum system and the bichromatic field of two waves,
one of which is assumed to be weak. We trace the dynamics of splitting into individual components for the spectral contours
of the absorption coefficient (gain) for the signal wave. We discuss the effect of amplification of the signal wave for its
frequency-degenerate two-wave interaction with pumping, when the field frequency is tuned to the “zero dispersion” point.
We determine the conditions with respect to the concentration of resonant atoms and the spectral regions of the frequencies
of the interacting waves for which, in order to correctly describe the effects under consideration, we need to take into account
the effect of pumping and the signal in both dipole-allowed transitions of an ensemble of V type three-level quantum systems.
We present the results of numerical calculations of the imaginary and real parts of the susceptibility of the resonant medium
at the frequency of the signal wave, as a function of the parameters for the high-power radiation and resonant transitions
of the quantum V system.
__________
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 74, No. 5, pp. 631–636, September–October, 2007. |
| |
Keywords: | four-wave mixing bichromatic field conical radiation three-photon scattering broadband and narrowband radiation V-type quantum system |
本文献已被 SpringerLink 等数据库收录! |
|