STP911: The Effects of Self-Focusing on Laser-Induced Breakdown

    Williams, WE
    North Texas State University, Denton, Texas

    Soileau, MJ
    North Texas State University, Denton, Texas

    Van Stryland, EW
    North Texas State University, Denton, Texas

    Pages: 9    Published: Jan 1985


    Abstract

    The polarization dependence of laser-induced breakdown and beam distortions in the transmitted time integrated spatial profile were used to determine the effects of self focusing on picosecond breakdown threshold measurements in fused silica and NaCl. The results at 1.06 and 0.53 μm laser wavelength indicate that, for focused geometries, no significant self-focusing occurs in these materials until the beam power approaches P2, the second critical power for self-focusing.

    Keywords:

    critical powers, fused quartz, laser damage, NaCl, picosecond pulses, self focusing, 0.53 μm, 1.06 μm


    Paper ID: STP29006S

    Committee/Subcommittee: F01.11

    DOI: 10.1520/STP29006S


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