CO2 laser power transmission and laser induced breakdown in AgClxBr1−x crystals, polycrystals, and fibers
- 5 October 1992
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 61 (14) , 1624-1625
- https://doi.org/10.1063/1.108457
Abstract
Laser‐induced breakdown (LIB) thresholds in AgClxBr1−x crystals, polycrystals, and fibers were studied under CO2 pulse laser excitation. The limit value of LIB threshold Pc of the bulk crystals is about 4×108 W/cm2 for x=1 and 8×108 W/cm2 for x=0 under 100 ns transversely excited atmospheric pressure laser excitation. The LIB threshold in fibers is much smaller; about 2×107 W/cm2. The dependence of the LIB on composition and temperature suggests that the main cause for LIB is electron avalanche combined with multiphonon absorption at 10.6 μm in silver halide crystals.Keywords
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