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Proceedings Paper

Picosecond and nanosecond pulsed laser ablation of aluminium, polypropylene, polyethylene, and their thin-film combinations
Author(s): Adrian H. A. Lutey; Michele Sozzi; Stefano Selleri; Annamaria Cucinotta; Pier Gabriele Molari
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Paper 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.

Paper Details

Date Published: 15 March 2013
PDF: 11 pages
Proc. SPIE 8608, Laser-based Micro- and Nanopackaging and Assembly VII, 860804 (15 March 2013); doi: 10.1117/12.2003953
Show Author Affiliations
Adrian H. A. Lutey, Univ. degli Studi di Bologna (Italy)
Michele Sozzi, Univ. degli Studi di Parma (Italy)
Stefano Selleri, Univ. degli Studi di Parma (Italy)
Annamaria Cucinotta, Univ. degli Studi di Parma (Italy)
Pier Gabriele Molari, Univ. degli Studi di Bologna (Italy)

Published in SPIE Proceedings Vol. 8608:
Laser-based Micro- and Nanopackaging and Assembly VII
Udo Klotzbach; Yongfeng Lu; Kunihiko Washio, Editor(s)

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