The role of the C state in the XeF laser
- 1 January 1979
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 34 (1) , 52-55
- https://doi.org/10.1063/1.90596
Abstract
Ne/Xe/NF3 mixtures were irradiated by a cold‐cathode e‐beam, and the fluorescence yields of the B and C states of XeF were measured as a function of neon pressure from 200 to 5300 Torr. At low neon pressures, the fluorescence yield of the B state corresponds to one photon emitted for each neon ion formed. As the neon pressure is increased the fluorescence yield of the B state decreases, but the ratio of the C emission to B emission approaches unity. If the C is formed through a channel which is independent of the B state, then the ultimate efficiency of the XeF laser is severely limited. However, analysis of the data with a XeF kinetics model indicates that the enhanced C emission results from two‐body quenching of the B state by neon. We conclude that the XeF laser performance has been limited by other processes, namely, incomplete vibrational relaxation and ground‐state bottlenecking.Keywords
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