Theoretical and experimental study on femtosecond laser-induced damage in MgF<sub>2</sub> crystals

C. B. Li; T. Q. Jia; H. Y. Sun; X. X. Li; S. Z. Xu; D. H. Feng; X. F. Wang; X. C. Ge; Z. Z. Xu

doi:10.1117/12.667195

29 December 2005 Theoretical and experimental study on femtosecond laser-induced damage in MgF₂ crystals

C. B. Li, T. Q. Jia, H. Y. Sun, X. X. Li, S. Z. Xu, D. H. Feng, X. F. Wang, X. C. Ge, Z. Z. Xu

Proceedings Volume 6028, ICO20: Lasers and Laser Technologies; 60281L (2005) https://doi.org/10.1117/12.667195
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

We study single-shot damage morphology of MgF₂ irradiated under 800 nm laser using scanning electronic microscope (SEM). The dependence of damage threshold on laser pulse width is measured by the linear relationship between the area of damage spot and the logarithm of laser energy. The pulse duration ranges from 55 fs to 750 fs. We develop the multiple-equation model (Phys. Rev. Lett. Vol.92, pp.187401, 2004), in which two-photon absorption in the conduction band is considered. The experimental results agree well with our model.

Citation Download Citation

C. B. Li, T. Q. Jia, H. Y. Sun, X. X. Li, S. Z. Xu, D. H. Feng, X. F. Wang, X. C. Ge, and Z. Z. Xu "Theoretical and experimental study on femtosecond laser-induced damage in MgF₂ crystals", Proc. SPIE 6028, ICO20: Lasers and Laser Technologies, 60281L (29 December 2005); https://doi.org/10.1117/12.667195

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