21 February 2005 Effect on scattering of complex morphology of DKDP bulk damage sites
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Abstract
Bulk damage sites in frequency conversion crystals scatter and/or absorb laser light leading to interference and downstream intensification .We find that laser induced bulk damage sites in DKDP exhibit a "shell" of structurally and/or chemically modified material surrounding a central core as indicated by SEM and optical micrographs and micro Raman spectral maps. We hypothesize that the modified material has been shock wave densified and estimate the amount of densification and its effect on scattering. A simple model indicates that densification of several percent is likely and that the scattering cross section may be larger than the geometric area of the inner core by an order of magnitude.
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Christopher Wren Carr, Christopher Wren Carr, Michael D. Feit, Michael D. Feit, J. J. Muyco, J. J. Muyco, Alexander M. Rubenchik, Alexander M. Rubenchik, } "Effect on scattering of complex morphology of DKDP bulk damage sites", Proc. SPIE 5647, Laser-Induced Damage in Optical Materials: 2004, (21 February 2005); doi: 10.1117/12.585927; https://doi.org/10.1117/12.585927
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