Abstract.
Surface structuring and compositioning in aluminum alloy 2024-T3 were demonstrated using a femtosecond pulse laser. Surface nanostructuring was developed as a function of laser parameters and the surface micrographs of the scanning electron microscopy were characterized as a function of incident laser fluence. Surface compositioning was performed by selectively removing the elements on the surface of the sample. Femtosecond studies of highly excited electrons were performed by a pump–probe technique, and the thermalization time was found to be in a range of 1.5–3 ps, increasing with incident fluence. The time-resolved measurement is well matched to the numerical calculation.
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Received: 6 September 2001 / Accepted: 18 July 2002 / Published online: 25 October 2002
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Dou, K., Knobbe, E., Parkhill, R. et al. Femtosecond study of surface structure and composition and time-resolved spectroscopy in metals . Appl Phys A 76, 303–307 (2003). https://doi.org/10.1007/s00339-002-1812-y
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DOI: https://doi.org/10.1007/s00339-002-1812-y