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Title: Cumulative material damage from train of ultrafast infrared laser pulses

Abstract

We developed a systematic experimental method to demonstrate that damage threshold fluence (DTF) for fused silica changes with the number of femtosecond laser (800 nm,$$65\pm 5~\text{fs}$$, 10 Hz and 600 Hz) pulses. Based on the experimental data, we were able to develop a model which indicates that the change in DTF varies with the number of shots logarithmically 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). Here these measurements indicate that the power of this dependence is an intrinsic parameter independent of the configuration.

Authors:
ORCiD logo [1];  [2];  [2];  [3];  [2];  [2];  [4]
  1. Technion - Israel Institute of Technology, Haifa (Israel); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  3. Stanford Univ., Stanford, CA (United States)
  4. Technion - Israel Institute of Technology, Haifa (Israel)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1503079
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
High Power Laser Science and Engineering
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2095-4719
Publisher:
Cambridge University Press
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 36 MATERIALS SCIENCE; laser-induced breakdown; laser damage; lasers and laser optics

Citation Formats

Hanuka, A., Wootton, K. P., Wu, Z., Soong, K., Makasyuk, I. V., England, R. J., and Schächter, L. Cumulative material damage from train of ultrafast infrared laser pulses. United States: N. p., 2019. Web. doi:10.1017/hpl.2018.62.
Hanuka, A., Wootton, K. P., Wu, Z., Soong, K., Makasyuk, I. V., England, R. J., & Schächter, L. Cumulative material damage from train of ultrafast infrared laser pulses. United States. doi:10.1017/hpl.2018.62.
Hanuka, A., Wootton, K. P., Wu, Z., Soong, K., Makasyuk, I. V., England, R. J., and Schächter, L. Wed . "Cumulative material damage from train of ultrafast infrared laser pulses". United States. doi:10.1017/hpl.2018.62. https://www.osti.gov/servlets/purl/1503079.
@article{osti_1503079,
title = {Cumulative material damage from train of ultrafast infrared laser pulses},
author = {Hanuka, A. and Wootton, K. P. and Wu, Z. and Soong, K. and Makasyuk, I. V. and England, R. J. and Schächter, L.},
abstractNote = {We developed a systematic experimental method to demonstrate that damage threshold fluence (DTF) for fused silica changes with the number of femtosecond laser (800 nm,$65\pm 5~\text{fs}$, 10 Hz and 600 Hz) pulses. Based on the experimental data, we were able to develop a model which indicates that the change in DTF varies with the number of shots logarithmically 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). Here these measurements indicate that the power of this dependence is an intrinsic parameter independent of the configuration.},
doi = {10.1017/hpl.2018.62},
journal = {High Power Laser Science and Engineering},
number = ,
volume = 7,
place = {United States},
year = {2019},
month = {2}
}

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