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Femtosecond laser damage resistance of oxide and mixture oxide optical coatings

ccgo8 添加于 2015-7-8 22:17 | 1038 次阅读 | 0 个评论

作者
Mangote B, Gallais L, Commandre M, Mende M, Jensen L, Ehlers H, Jupe M, Ristau D, Melninkaitis A, Mirauskas J, Sirutkaitis V, Kicas S, Tolenis T, Drazdys R
摘要
We report on the laser damage resistance of ion beam-sputtered oxide materials (Al2O3, Nb2O5, HfO2, SiO2, Ta2O5, ZrO2) and mixtures of Al2O3-SiO2, Nb2O5-SiO2, HfO2-SiO2, Ta2O5-SiO2, and ZrO2-SiO2, irradiated by single 500 fs pulses at 1030 nm. Laser-induced damage threshold (LIDT), refractive index, and bandgaps of the single-layer coatings are measured. For pure oxide materials a linear evolution of the LIDT with bandgap is observed. The results are in accordance with our simulations based on photo-ionization and avalanche-ionization. In the case of mixtures, however, deviations from the previous behaviors are evidenced. The evolution of the LIDT as a function of the refractive index is analyzed, and an empirical description of the relation between refractive index and LIDT is proposed.
详细资料
- 文献种类: Journal Article
- 期刊名称: Optics Letters
- 期刊缩写: Opt Lett
- 期卷页: 2012年第37卷第9期 1478-1480页
- 地址: Institut Fresnel, CNRS, Aix-Marseille Universite, Ecole Centrale Marseille, Marseille, France
- ISBN: 0146-9592
学科领域自然科学 » 物理学
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