1 February 2000 Effects of anomalous high penetration rate of high-power KrF laser radiation throughout the solid matter and shock-induced graphite-diamond phase transformation
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Proceedings Volume 3885, High-Power Laser Ablation II; (2000) https://doi.org/10.1117/12.376967
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan
Abstract
This paper describes a performance of 100 J-class KrF laser system `GARPUN' intended for target irradiation experiments by 100 ns pulses. A controllable space-time distribution in a focal spot reaching 5*1012 W/cm2 produced megabar ablation pressure, which irradiated conical shock wave in solids. It propagated in a quasi-steady manner together with an ablation front that resulted in anomalous high penetration rate of laser radiation throughout the matter. Long-time sample loading together with strong tangential shear flow of compressed layers produced favorable conditions for pressure-induced transformation of the pyrolytic graphite into a diamond-like phase by martensitic mechanism.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Vladimir D. Zvorykin, Vladimir D. Zvorykin, Valerii G. Bakaev, Valerii G. Bakaev, Vyacheslav Yu. Korol', Vyacheslav Yu. Korol', Ivan G. Lebo, Ivan G. Lebo, Vladislav B. Rozanov, Vladislav B. Rozanov, Gleb V. Sychugov, Gleb V. Sychugov, } "Effects of anomalous high penetration rate of high-power KrF laser radiation throughout the solid matter and shock-induced graphite-diamond phase transformation", Proc. SPIE 3885, High-Power Laser Ablation II, (1 February 2000); doi: 10.1117/12.376967; https://doi.org/10.1117/12.376967
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