Laser damage processes in cleaved and polished CaF2 at 248 nm

Michael Reichling; S. Gogoll; E. Stenzel; H. Johansen; M. Huisinga; Eckart Matthias

doi:10.1117/12.240356

27 May 1996 Laser damage processes in cleaved and polished CaF₂ at 248 nm

Michael Reichling, S. Gogoll, E. Stenzel, H. Johansen, M. Huisinga, Eckart Matthias

Proceedings Volume 2714, 27th Annual Boulder Damage Symposium: Laser-Induced Damage in Optical Materials: 1995; (1996) https://doi.org/10.1117/12.240356
Event: Laser-Induced Damage in Optical Materials: 1995, 1995, Boulder, CO, United States

Abstract

Single-shot irradiation of single crystal CaF₂ with 248 nm/14 ns laser light results in various degrees of degradation and damage depending on the applied laser fluence. Phenomena range from subtle, non-topographic surface modification only detectable by secondary electrons of scanning electron microscopy (SE-SEM) over cracking along crystallographic directions to the ablation of crystalline material. Significant differences are found for cleaved and polished surfaces. Findings from SEM investigations, in-situ photoacoustic mirage measurements and visual inspection of irradiated samples from a comprehensive picture of the stages of laser-induced damage.

Citation Download Citation

Michael Reichling, S. Gogoll, E. Stenzel, H. Johansen, M. Huisinga, and Eckart Matthias "Laser damage processes in cleaved and polished CaF₂ at 248 nm", Proc. SPIE 2714, 27th Annual Boulder Damage Symposium: Laser-Induced Damage in Optical Materials: 1995, (27 May 1996); https://doi.org/10.1117/12.240356

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