Collision frequencies in density-matrix kinetic equations describing nonlinear effects in the wings of spectral lines

Using the eikonal approximation, we have calculated effective collision frequencies in density-matrix kinetic equations describing nonlinear effects in the wings of spectral lines. We have established the relation between the probabilities of absorption and stimulated emission and the characteristic...

Full description

Saved in:
Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2011-11, Vol.41 (11), p.1016-1022
Main Authors: Parkhomenko, A I, Shalagin, Anatolii M
Format: Article
Language:English
Subjects:
ABSORPTION
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COLLISIONS
DENSITY MATRIX
EIKONAL APPROXIMATION
INTERACTIONS
KINETIC EQUATIONS
NONLINEAR OPTICS
PROBABILITY
QUANTUM MECHANICS
SCATTERING
STIMULATED EMISSION
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Using the eikonal approximation, we have calculated effective collision frequencies in density-matrix kinetic equations describing nonlinear effects in the wings of spectral lines. We have established the relation between the probabilities of absorption and stimulated emission and the characteristics of the radiation and elementary scattering event. The example of the power interaction potential shows that quantum mechanical calculation of the collision frequencies in the eikonal approximation and previously known spectral line wing theory give similar results for the probability of radiation absorption.
ISSN:1063-7818
1468-4799
DOI:10.1070/QE2011v041n11ABEH014679