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    Closed-Form Onset Threshold Analysis of Defect-Driven Surface and Bulk Laser Damage

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    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.

    Author Information:

    O'Connell, RM
    University of Missouri - Columbia, Columbia, MO

    Committee/Subcommittee: F01.02

    DOI: 10.1520/STP23647S