Nonequilibrium distribution of particles with doublet levels in the infrared radiation field of a laser
Abstract
An exact solution in quadratures is obtained for the multiple-quantum excitation of particles with energy spectra in the form of a sequence of levels split into two sublevels. Several excitation channels are possible in a system of this kind, with particle division into cold and hot particles occurring under collisionless conditions due to channel interference. A function describing particle distribution by levels at any given time is determined, and the fast and slow evolution of this function with time is discussed.
- Publication:
-
Zhurnal Prikladnoi Spektroskopii
- Pub Date:
- July 1983
- Bibcode:
- 1983ZhPS...39...41M
- Keywords:
-
- Infrared Absorption;
- Laser Target Interactions;
- Molecular Excitation;
- Population Theory;
- Distribution Functions;
- Fine Structure;
- Infrared Lasers;
- Molecular Energy Levels;
- Molecular Spectra;
- Nonequilibrium Thermodynamics;
- Quadratures;
- Lasers and Masers