AN INVESTIGATION OF THE EFFECT OF GAS ADDITIVES ON THE ELECTRON TEMPERATURE AND DENSITY IN A CO2 LASER DISCHARGE
- 15 November 1966
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 9 (10), 367-369
- https://doi.org/10.1063/1.1754615
Abstract
The radial variation of electron temperature and density with partial gas pressures in a CO2–N2–He laser discharge is measured using double‐probe and microwave resonance techniques. In a 22‐mm‐diam discharge tube the optimum partial gas pressures for maximum laser power correspond to an electron temperature of 3 eV and a density of 3 × 109 cm3. The radial electron density profile is compatible with measured gain profiles. The results indicate that the role of He in the excitation mechanism is not due to a reduction in electron temperature.Keywords
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