Polyatomic-buffered pulsed DF/HF laser using electron-beam or photolysis initiation
Abstract
The initial performance of pulsed DF/HF chain lasers is presented in which the effect of polyatomic diluents on laser behavior is systematically explored. Laser energy, pulse length, and spectral output were investigated as functions of diluent gas (NF3, SF6, CF4), total mixture pressure, the partial pressure of fuel and oxidizer, O2 concentration, and strength of initiation. Magnetically-confined electron beam and photolytically initiated systems are found to yield comparable performance. Results include 65 J/liter-atm DF output at 200 Torr cavity pressure and the ability to suppress long wavelength transitions from the free-running spectrum.
- Publication:
-
American Institute of Aeronautics and Astronautics Conference
- Pub Date:
- June 1987
- Bibcode:
- 1987aiaa.confW....A
- Keywords:
-
- Df Lasers;
- Hf Lasers;
- Laser Outputs;
- Photolysis;
- Pulsed Lasers;
- Spectrum Analysis;
- Chemical Lasers;
- Diluents;
- Electron Pumping;
- Flash Lamps;
- Optical Pumping;
- Lasers and Masers