Efficient High-Energy HCl Chemical Laser
Semi-annual rept. no. 2, 15 Jan-15 Jul 1975
MATHEMATICAL SCIENCES NORTHWEST INC BELLEVUE WA
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Further improvements in electrical efficiency have been obtained in the HCl chemical laser using a higher current cold cathode electron gun. HCl laser energies of 1.2 Jl-atm at 4 percent electrical efficiency were achieved. There is a strong indication that shorter pulse durations would be desirable and modifications to the apparatus are currently underway to produce shorter pulse, higher current operation. The HCl laser energy increased four fold when discharge excitation was added to the electron beam excitation. It has not yet been possible to identify the mechanism responsible for the increased laser output associated with discharge excitation vibrational excitation of H2, and additional atom production are the most likely possibilities. Successful operation of the hydrogen diagnostic equipment Coherent Anti-Stokes Raman Scattering spectroscopy CARS has been demonstrated and will be applied to explore the role of H2v in the reaction kinetics.
- Lasers and Masers