Comparative studies of laser-induced damage threshold measurements in highly reflecting mirrors

A. Melninkaitis, D. Mikšys, R. Grigonis, V. Sirutkaitis, M. Jupé, D. Ristau
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引用次数: 2

Abstract

S-on-1 laser-induced damage threshold (LIDT) dependence on the pulse duration at two different wavelengths was experimentally investigated in metallic and dielectric laser mirrors. LIDT's of high-reflective dielectric coatings made of alternating λ/4 layers of TiO2/SiO2 and Ta2O5/SiO2 and those of protected metallic Au and Ag coatings were tested at 800 nm and 400 nm wavelengths with Ti:Sapphire laser pulses of 46 fs, 130 fs and 1.8 ps duration. S-on-1 measurements were performed according to international ISO 11254-2 standard using 10000 pulses/per site and compared with 1-on-1 measurements.
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高反射镜中激光损伤阈值测量的比较研究
在金属和介质激光反射镜中实验研究了不同波长S-on-1激光诱导损伤阈值(LIDT)与脉冲持续时间的关系。采用持续时间分别为46、130和1.8 ps的Ti:Sapphire激光脉冲,在800 nm和400 nm波长下测试了由TiO2/SiO2和Ta2O5/SiO2交替λ/4层制备的高反射介质涂层以及保护金属Au和Ag涂层的LIDT。S-on-1测量根据国际ISO 1154 -2标准进行,每个站点使用10000脉冲,并与1-on-1测量进行比较。
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