STP799

    Reversible and Irreversible Changes in NaCl and KCl Absorption During Multiple Pulse 10.6 μm Irradiation

    Published: Jan 1983


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    Abstract

    Repetitively pulsed laser calorimetry was used to detect both reversible and irreversible increases in the 10.6 μm absorption of NaCl and KCl. The irreversible changes are first noted at the same intensity that is found to cause damage after multiple irradiations. Just below this intensity damage is not detected even after ∼1800 pulses. As a result of this work, a redefinition of the fatigue threshold is necessary as it must be distinguished from the breakdown damage threshold studied in earlier research.

    Keywords:

    alkali halide absorption, fatigue damage threshold, multipulse laser damage, pulsed laser calorimetry


    Author Information:

    Wu, S-T
    Center for Laser Studies University of Southern California, Los Angeles, CA

    Bass, M
    Center for Laser Studies University of Southern California, Los Angeles, CA

    Stone, JP
    Center for Laser Studies University of Southern California, Los Angeles, CA


    Paper ID: STP37237S

    Committee/Subcommittee: F01.02

    DOI: 10.1520/STP37237S


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