Dominant formation and quenching processes in E-beam pumped ArF/asterisk/ and KrF/asterisk/ lasers
Abstract
The dominant formation and quenching processes in E-beam pumped exciplex ArF and KrF lasers are studied. The exciplexes are produced by irradiating Ar/F2 and Ar/Kr/F2 mixtures with a 5 A/sq cm, 150 keV E-beam. It is shown that rare gas ions produce these exciplex species with high efficiency via the ion channel with unit branching. The measurements lead to the conclusion that the decrease of the fluorescence intensity with increasing pressure is the result of two- and three-body quenching of the exciplex. The various quenching rate constants are determined by analyzing the dependence of the quasi-steady state fluorescence on the partial pressures of the rare gases and fluorine and the power deposited into the gas mixture. In a laser it is possible to minimize the loss due to the quenching processes by saturating the lasing transition.
- Publication:
-
High-Power Lasers and Applications
- Pub Date:
- 1978
- Bibcode:
- 1978hpla.proc...19R
- Keywords:
-
- Argon Lasers;
- Electron Pumping;
- Excimer Lasers;
- Fluorides;
- Krypton Fluoride Lasers;
- Quenching (Atomic Physics);
- Rare Gas Compounds;
- Electron Beams;
- Fluorescence;
- Gas Pressure;
- Kinetics;
- Laser Outputs;
- Lasing;
- Power Efficiency;
- Tables (Data);
- Lasers and Masers