14 September 1998 Dynamics of femtosecond-laser-induced ablation from solid surfaces
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Proceedings Volume 3343, High-Power Laser Ablation; (1998) https://doi.org/10.1117/12.321593
Event: High-Power Laser Ablation, 1998, Santa Fe, NM, United States
Abstract
Femtosecond laser induced ablation from solid surfaces has been investigated by means of time resolved microscopy. On transparent materials ablation is initiated by dielectric breakdown and formation of a dense and hot surface plasma. Measurements of the plasma threshold yield values of a few times 1013 W/cm2 with little variation among different materials. This indicates that microscopic surface properties are responsible for surface breakdown. On absorbing semiconductors and metals near-threshold ablation is brought about by hydrodynamic expansion of the laser generated hot and pressurized matter. Upon expansion into vacuum initially metallic materials transform into a transparent state with a high refractive index. The observed behavior is related to general properties of matter in the liquid-gas coexistence regime.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Klaus Sokolowski-Tinten, Klaus Sokolowski-Tinten, Joerg Bialkowski, Joerg Bialkowski, Andrea Cavalleri, Andrea Cavalleri, Martin Boing, Martin Boing, Harald Schueler, Harald Schueler, Dietrich von der Linde, Dietrich von der Linde, } "Dynamics of femtosecond-laser-induced ablation from solid surfaces", Proc. SPIE 3343, High-Power Laser Ablation, (14 September 1998); doi: 10.1117/12.321593; https://doi.org/10.1117/12.321593
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