18 December 2007 The effect of lattice temperature on surface damage in fused silica optics
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Abstract
We examine the effect of lattice temperature on the probability of surface damage initiation for 355nm, 7ns laser pulses for surface temperatures below the melting point to temperatures well above the melting point of fused silica. At sufficiently high surface temperatures, damage thresholds are dramatically reduced. Our results indicate a temperature activated absorption and support the idea of a lattice temperature threshold of surface damage. From these measurements, we estimate the temperature dependent absorption coefficient for intrinsic silica.
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J. Bude, J. Bude, G. Guss, G. Guss, M. Matthews, M. Matthews, M. L. Spaeth, M. L. Spaeth, } "The effect of lattice temperature on surface damage in fused silica optics", Proc. SPIE 6720, Laser-Induced Damage in Optical Materials: 2007, 672009 (18 December 2007); doi: 10.1117/12.752989; https://doi.org/10.1117/12.752989
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