Damage threshold of fluoride HR coatings at 352 nm

Takao Izawa; N. Yamamura; R. Uchimura; S. Kimura; T. Yakuoh

doi:10.1117/12.147436

24 June 1993 Damage threshold of fluoride HR coatings at 352 nm

Takao Izawa, N. Yamamura, R. Uchimura, S. Kimura, T. Yakuoh

Proceedings Volume 1848, 24th Annual Boulder Damage Symposium Proceedings -- Laser-Induced Damage in Optical Materials: 1992; (1993) https://doi.org/10.1117/12.147436
Event: Optical Materials for High Power Lasers, 1992, Boulder, CO, United States

Abstract

Laser damage thresholds of fluoride HR coating were investigated at 352 nm, 10 ns pulses. Additionally, an effective method to reduce the crazing in fluoride HR coatings is studied. A high threshold greater than 30 J/cm² was achieved in LaF₃/AlF₃ coating when the laser conditioning procedure was used. The IAD process or double stack design with a combination of fluoride and HfO₂SiO₂ coating was effective in reducing the crazing.

Citation Download Citation

Takao Izawa, N. Yamamura, R. Uchimura, S. Kimura, and T. Yakuoh "Damage threshold of fluoride HR coatings at 352 nm", Proc. SPIE 1848, 24th Annual Boulder Damage Symposium Proceedings -- Laser-Induced Damage in Optical Materials: 1992, (24 June 1993); https://doi.org/10.1117/12.147436

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