Closed-form onset threshold analysis of defect-driven surface and bulk laser damage

Robert M. O'Connell

doi:10.1117/12.27544

1 June 1991 Closed-form onset threshold analysis of defect-driven surface and bulk laser damage

Robert M. O'Connell

Proceedings Volume 1441, Laser-Induced Damage in Optical Materials: 1990; (1991) https://doi.org/10.1117/12.27544
Event: Laser-Induced Damage in Optical Materials: 1990, 1990, Boulder, CO, United States

Abstract

Surface and bulk laser damage probability distribution functions are derived for a Gaussian beam and a power-law defect ensemble. Closed-form solutions are derived and plotted for six and three values of the defect ensemble parameter p respectively in the surface and bulk damage distribution functions. The derived degenerate (p 1) and non-degenerate (p 0) bulk damage equations are least-squares fitted to measured laser damage statistics in PMMA. The results show that the power law defect ensemble is a reasonable description of the defects in the damage-tested PMMA and that the ensemble is more degenerate in character than uniform. I.

Citation Download Citation

Robert M. O'Connell "Closed-form onset threshold analysis of defect-driven surface and bulk laser damage", Proc. SPIE 1441, Laser-Induced Damage in Optical Materials: 1990, (1 June 1991); https://doi.org/10.1117/12.27544

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