18 August 1997 Laser shock processing of materials: experimental study of breakdown plasma effects at the surface of confining water
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Proceedings Volume 3097, Lasers in Material Processing; (1997) https://doi.org/10.1117/12.281117
Event: Lasers and Optics in Manufacturing III, 1997, Munich, Germany
Abstract
Laser Shock Processing in water confinement regime was investigated for an incident 25 - 30 ns/40 J/(lambda) equals 1.064 micrometers laser beam. The experimental measurement of the transmission of the parasitic plasma breakdown at the surface of water confining has been performed with continuous Argon laser probe. Above 6 GW/cm2, the critical electronic density for the incident laser wavelength is achieved in the plasma by cascade ionization. Above 10 GW/cm2, it has been shown that the power density transmitted through the plasma is limited at 10 GW/cm2. The laser pulse transmitted through the breakdown plasma corresponds to the part of incident laser pulse preceding the transmission cut-off. Results are in good agreement with those obtained previously.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Laurent Berthe, Laurent Berthe, Remy Fabbro, Remy Fabbro, Patrice Peyre, Patrice Peyre, Eric Bartnicki, Eric Bartnicki, } "Laser shock processing of materials: experimental study of breakdown plasma effects at the surface of confining water", Proc. SPIE 3097, Lasers in Material Processing, (18 August 1997); doi: 10.1117/12.281117; https://doi.org/10.1117/12.281117
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