Breakdown Phenomena in Rare and in Molecular Gases Using Pulsed Carbon Dioxide Laser Radiation.
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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Light from an atmospheric pressure, double-discharge CO2 laser was focused in Ar, He, N2, H2, and air at pressures from 0.01 atm to 10 atm in order to produce optical breakdown. Measurements of the transmitted laser intensity were obtained and the properties of the resulting spark were studied by means of an open face camera and spectroscopic techniques. The threshold power density was discussed. The importance of loss terms other than electron diffusion loss was discussed. Emission spectra consisted of a strong continuum superimposed with strong lines due to neutral and ionized atoms. Modified author abstract
- Lasers and Masers
- Atomic and Molecular Physics and Spectroscopy
- Plasma Physics and Magnetohydrodynamics