Analytical solution of the kinetic equation of a copper-vapor plasma in ionization conditions
Abstract
The ionization of Cu vapor by the exciting pulse of a self-limiting-transition laser is investigated theoretically, taking the upward transitions into account but neglecting the recombination and radiative-decay processes, as suggested by Vokhmin and Klimovskii (1978) and Arlantsev et al. (1980). The kinetic equations describing a six-level model of the Cu atom are solved analytically; expressions for the electron-level populations are derived; and the dependence of the specific pulse energy and the 510.5-nm and 578.2-nm generation efficiency on the temperature characterizing the initial level populations and on the electron temperature is evaluated. Numerical results are presented in graphs, and the population and depopulation processes for the metastable levels are considered. The computation-time advantages of an analytical approach are indicated.
- Publication:
-
Teplofizika Vysokikh Temperatur
- Pub Date:
- September 1984
- Bibcode:
- 1984TepVT..22..243V
- Keywords:
-
- Copper;
- Kinetic Equations;
- Laser Plasmas;
- Metallic Plasmas;
- Atomic Energy Levels;
- Conservation Laws;
- Electron Transitions;
- Ionization;
- Metal Vapor Lasers;
- Metastable State;
- Lasers and Masers