18 December 2007 Does complex absorption behavior leading to conditioning and damage in KDP/DKDP reflect the electronic structure of initiators?
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Abstract
Currently, most of our thinking about the defects responsible for initiating laser damage considers them as featureless absorbers. However, an increasing body of evidence, particularly involving multi-wavelength irradiation, suggests electronic structure of damage initiators is important in determining both initiation and conditioning behaviors in KDP. The effective absorption coefficient of energy under multi-wavelength irradiation cannot be accounted for by a structureless absorber, but is consistent with an initiator with a multi-level structure. We outline the evidence and assess the ability of such a simple multi-level model to explain these and other experimentally observed behaviors.
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M. D. Feit, M. D. Feit, P. P. DeMange, P. P. DeMange, R. A. Negres, R. A. Negres, A. M. Rubenchik, A. M. Rubenchik, S. G. Demos, S. G. Demos, } "Does complex absorption behavior leading to conditioning and damage in KDP/DKDP reflect the electronic structure of initiators?", Proc. SPIE 6720, Laser-Induced Damage in Optical Materials: 2007, 672005 (18 December 2007); doi: 10.1117/12.748444; https://doi.org/10.1117/12.748444
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