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Wavelength Dependence of the Laser-Induced Damage Threshold of α-Al2O3

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Abstract

We systematically determined the ablation threshold of α-Al2O3 under 360 to 900-nm wavelength femtosecond laser irradiation. We found step-like behavior in the threshold explained by multiphoton processes, well reproduced by an electron single-rate equation model.

© 2016 Optical Society of America

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