SYMPOSIA PAPER Published: 01 January 1988

Database of Average-Power Damage Thresholds at 1064 nm


We have completed a database of average-power, laser-induced, damage thresholds at 1064 nm on a variety of materials. Measurements were made with a newly constructed laser at the Lawrence Livermore National Laboratory (LLNL) to provide design input for moderate and high average-power laser projects. The measurements were conducted with 16-ns pulses at pulse-repetition frequencies ranging from 6 to 120 Hz. Samples were typically irradiated for times ranging from a fraction of a second up to 5 minutes (36,000 shots). We tested seven categories of samples which included antireflective coatings, high reflectors, polarizers, single and multiple layers of the same material, bare and overcoated metal surfaces, bare polished surfaces, and bulk materials. The measured damage thresholds ranged from < 1 J/cm2 for some metals to > 46 J/cm2 for a bare polished glass substrate.

Author Information

Rainer, F
Hildum, EA
Milam, D
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Developed by Committee: F01
Pages: 410–418
DOI: 10.1520/STP24451S
ISBN-EB: 978-0-8031-5033-1
ISBN-13: 978-0-8031-4481-1