15 March 2013 Picosecond and nanosecond pulsed laser ablation of aluminium, polypropylene, polyethylene, and their thin-film combinations
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Abstract
The pico- and nano-second ablation thresholds and subsequent pulse-energy cut-depth and width relationships of aluminium, polypropylene (PP), polyethylene (PE) and their various thin-film combinations have been determined at 515 nm and 1064 nm. High quality incisions were obtained for all structures within certain parameter ranges. All ablation thresholds were found to be functions of the temporal pulse-width. Numerical simulations revealed the underlying mechanisms as phase explosion and thermal conduction. The presented results provide necessary parameters for the efficient cut and scribe of such materials, allowing the laser to prevail in lieu of more costly and energy intensive methods.
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Adrian H. A. Lutey, Adrian H. A. Lutey, Michele Sozzi, Michele Sozzi, Stefano Selleri, Stefano Selleri, Annamaria Cucinotta, Annamaria Cucinotta, Pier Gabriele Molari, Pier Gabriele Molari, } "Picosecond and nanosecond pulsed laser ablation of aluminium, polypropylene, polyethylene, and their thin-film combinations", Proc. SPIE 8608, Laser-based Micro- and Nanopackaging and Assembly VII, 860804 (15 March 2013); doi: 10.1117/12.2003953; https://doi.org/10.1117/12.2003953
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