Gas Breakdown with 10.6-μ-Wavelength CO2 Laser Radiation
- 1 October 1970
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 41 (11) , 4501-4505
- https://doi.org/10.1063/1.1658488
Abstract
The gas‐breakdown threshold or the minimum power density required to ionize a gas with 10.6‐μ‐wave‐length radiation has been examined using the radiation of a Q‐switched CO2 laser. The studies show that the focused beam cannot initiate the breakdown process for intensities as high as 109 W/cm2. If an initial low degree of ionization is provided by an external source, the subsequent growth of the breakdown is in agreement with a cascade model as evidenced by the experimentally determined gas pressure and laser‐radiation frequency dependence.This publication has 10 references indexed in Scilit:
- Q-switched CO2laserIEEE Journal of Quantum Electronics, 1969
- Laser induced gas breakdown: A bibliographical reviewIEEE Journal of Quantum Electronics, 1969
- EFFECT OF MODE BEATING IN LASER-PRODUCED GAS BREAKDOWNApplied Physics Letters, 1967
- Energy-Loss Processes in Optical-Frequency Gas BreakdownPhysical Review Letters, 1966
- BREAKDOWN AND HEATING OF GASES UNDER THE INFLUENCE OF A LASER BEAMSoviet Physics Uspekhi, 1966
- TWO WAVELENGTH INTERFEROMETRY OF A LASER-INDUCED SPARK IN AIRApplied Physics Letters, 1966
- Frequency Dependence of Optically Induced GAS BreakdownPhysical Review Letters, 1965
- Multiphoton Ionization and the Breakdown of Noble GASESPhysical Review Letters, 1965
- Optical-Energy Absorption and High-Density Plasma ProductionPhysical Review Letters, 1964
- Gas Breakdown at Optical FrequenciesPhysical Review Letters, 1963