Changeover in the molecular and atomic fluorine laser transitions.
Appl Opt
; 49(15): 2741-8, 2010 May 20.
Article
em En
| MEDLINE
| ID: mdl-20490233
ABSTRACT
Measurements of molecular and atomic fluorine laser emissions were done from 2?psi (absolute) to 5?atm to determine pressure-dependent spectral lines. While at low pressures, the atomic transitions are dominant; however, both atomic and molecular transitions are detected simultaneously at atmospheric pressures above approximately 2?atm, where a changeover occurs. The excitation mechanisms are strongly dependent on the excited and ionized He species within the gain medium. Initially it affects the atomic transitions of the submanifolds and the corresponding molecular transition takes place via collisional events. The gain competitions among the doublet and quartet atomic transitions have also been investigated.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Análise Espectral
/
Flúor
/
Lasers
/
Modelos Químicos
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article