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Theoretical Investigation of the Effect of Particle Contaminants on Laser-Induced Air Breakdown
Technical rept. 22 Jun 1971-30 Aug 1972
KMS TECHNOLOGY CENTER IRVINE CA
Pagination or Media Count:
Investigation of the Effect of Particle Contaminants on Laser- Induced Air Breakdown. Technical rept. 22 Jun 71-30 Aug 72, Feiock, Frank D. Goodwin, Lester K. F29601-71-C-0118, ARPA Order-1256AF-1256125609, AFWLTR-72-172gas discharges, air, aerosols, gas discharges, electron density, quartz, sapphire, particles, gas ionization, impurities, hydrodynamics, computer programs, partial differential equations, distribution functions laser beams, atmospheres, attenuation, dielectrics, failure the effect of atmospheric contaminants on the laser-induced breakdown of air is investigated. Calculations were performed using a one-dimensional, Lagrangian, hydrodynamic code developed for the study. The results of this study indicate that the interaction of a laser beam with atmospheric contaminants such as SiO2 and Al2O3 can supply a primary electron density that will lead to a significant decrease in the laser-induced breakdown threshold for air.
APPROVED FOR PUBLIC RELEASE