Polarized 10-ns frequency-doubled Nd:YAG laser-induced damage to titanium-doped sapphire

Yang Sun; Qiang Zhang; Huixing Gong

doi:10.1117/12.180874

28 July 1994 Polarized 10-ns frequency-doubled Nd:YAG laser-induced damage to titanium-doped sapphire

Yang Sun, Qiang Zhang, Huixing Gong

Proceedings Volume 2114, Laser-Induced Damage in Optical Materials: 1993; (1994) https://doi.org/10.1117/12.180874
Event: Laser-Induced Damage in Optical Materials: 1993, 1993, Boulder, CO, United States

Abstract

In the present paper, the experimental results of a 10 ns, 532 nm Q-switched Nd:YAG laser- induced surface and bulk damage of uncoated, polished Ti:sapphire (Ti:³⁺:Al₂O₃) single crystal, grown by the Induction Thermal Field Up-shift Method in our laboratory, are reported. It is found that the measured thresholds of both surface damage and bulk breakdown strongly varied not only with the Ti³⁺ ion doping concentrations of the tested sample but also with the crystallographic direction of the crystal, whose exact nature has not been previously identified. It is also observed that in the same conditions the surface damage threshold is much lower than the bulk damage threshold. The surface damage is the main cause to laser-induced damage of Ti:sapphire single crystal. In addition, the relative damage morphology and the possible explanation for these experimental results are given.

Citation Download Citation

Yang Sun, Qiang Zhang, and Huixing Gong "Polarized 10-ns frequency-doubled Nd:YAG laser-induced damage to titanium-doped sapphire", Proc. SPIE 2114, Laser-Induced Damage in Optical Materials: 1993, (28 July 1994); https://doi.org/10.1117/12.180874

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