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Proceedings Paper

First principles simulation of laser-induced periodic surface structure using the particle-in-cell method
Author(s): Robert A. Mitchell III; Douglass W. Schumacher; Enam A. Chowdhury
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Paper Abstract

We present our results of a fundamental simulation of a periodic grating structure formation on a copper target during the femtosecond-pulse laser damage process, and compare our results to recent experiment. The particle-in-cell (PIC) method is used to model the initial laser heating of the electrons, a two-temperature model (TTM) is used to model the thermalization of the material, and a modified PIC method is employed to model the atomic transport leading to a damage crater morphology consistent with experimental grating structure formation. This laser-induced periodic surface structure (LIPSS) is shown to be directly related to the formation of surface plasmon polaritons (SPP) and their interference with the incident laser pulse.

Paper Details

Date Published: 23 November 2015
PDF: 7 pages
Proc. SPIE 9632, Laser-Induced Damage in Optical Materials: 2015, 96320Y (23 November 2015); doi: 10.1117/12.2195006
Show Author Affiliations
Robert A. Mitchell III, The Ohio State Univ. (United States)
Douglass W. Schumacher, The Ohio State Univ. (United States)
Enam A. Chowdhury, The Ohio State Univ. (United States)

Published in SPIE Proceedings Vol. 9632:
Laser-Induced Damage in Optical Materials: 2015
Gregory J. Exarhos; Vitaly E. Gruzdev; Joseph A. Menapace; Detlev Ristau; MJ Soileau, Editor(s)

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