11 December 2017 Bulk absorption properties of LBO crystals
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Abstract
We present the results of comprehensive bulk absorption studies on numerous LBO crystals at 1070nm, 532nm and 355nm using the sandwich-LID measurement concept. One aim of the studies is answering the question whether there is a correlation between bulk absorption coefficients at the different applied wavelengths. Further, intensity dependent absorption measurements at 355nm are performed to investigate the nonlinear absorption in the LBO crystals. From the results it is verified, that at least to a certain extent the nonlinear absorption is related to impurities or defects, i.e. to sequential three photon absorption in addition to a potential intrinsic 3-photon absorption process.
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Ch. Mühlig, S. Bublitz, "Bulk absorption properties of LBO crystals", Proc. SPIE 10447, Laser-Induced Damage in Optical Materials 2017, 104471N (11 December 2017); doi: 10.1117/12.2280454; https://doi.org/10.1117/12.2280454
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