The microstructure and LIDT of Nb2O5and Ta2O5 optical coatings

被引：8
|
作者：
Abromavicius, G. [1 ]
Buzelis, R. [1 ]
Drazdys, R. [1 ]
Melninkaltis, A. [2 ]
Miksys, D. [2 ]
Sirutkaitis, V. [2 ]
Skrebutenas, A. [3 ]
Juskenas, R. [4 ]
Selskis, A. [4 ]
机构：
[1] Inst Phys, Savanoriu 231, LT-02300 Vilnius, Lithuania
[2] Vilnius Univ, Laser Res Ctr, LT-10222 Vilnius, Lithuania
[3] Optida Co, LT-01108 Vilnius, Lithuania
[4] Inst Chem, LT-01108 Vilnius, Lithuania
来源：
LASER-INDUCED DAMAGE IN OPTICAL MATERIALS: 2006 | 2007年 / 6403卷
关键词：
optical damage; optical coatings; ion-assisted deposition; niobia; tantala; LIDT;
D O I：
10.1117/12.696259
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High power laser systems are one of the most rapidly growing areas in the development of laser technology. This also leads towards higher requirements for environmental stability of optical components and their resistance to laser radiation. There are some reports showing that porous dielectric coatings are more resistant to intense laser radiation, however they have smaller environmental stability than denser coatings, which are more sensitive to laser radiation. The influence of important technological parameters (deposition rate, substrate temperature, energy of ions) on optical and microstructural properties of high reflection dielectric coatings based on Nb2O5/SiO2, and Ta2O5/SiO2 in VIS spectral region is presented. Furthermore the LIDT measurements using repetitive nanosecond laser pulses of Nb2O5/SiO2 and Ta2O5/SiO2 high reflecting optical coatings based on ISO 11254-2 standard are presented.
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页数：7
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