Author: Makasyuk, I.V.
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THPOW054 Cumulative Damage of Ultrafast Laser Pulses 4066
SUPSS023   use link to see paper's listing under its alternate paper code  
  • A. Hanuka, L. Schächter
    Technion, Haifa, Israel
  • R.J. England, I.V. Makasyuk, K. Soong, K.P. Wootton, Z. Wu
    SLAC, Menlo Park, California, USA
  We demonstrate experimentally that damage threshold fluence (DTF) for fused silica changes with the number of femtosecond laser (10Hz 600Hz, 655 fs, 800nm) shots. Based on the experimental data we were able to develop a model which indicates that the change in DTF varies with number of shots logarithmically (lnp) up to a critical value. Above this value, DTF approaches an asymptotic value. Both DTF for a single shot and the asymptotic value as well as the critical value where this happens are extrinsic parameters dependent on the configuration (repetition rate, pressure and geometry near or at the surface). Indications are that the power of this dependence (p) is an intrinsic parameter independent of the configuration.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPOW054  
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