Protective coatings for large size KDP crystals

被引：2

作者：

Zhang, WQ ^{[1
]}

Tang, YX ^{[1
]}

Liu, XL ^{[1
]}

Jiang, MH ^{[1
]}

Le, YQ ^{[1
]}

Sun, JR ^{[1
]}

Chen, ZY ^{[1
]}

机构：

[1] Acad Sinica, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

来源：

THIRD INTERNATIONAL CONFERENCE ON THIN FILM PHYSICS AND APPLICATIONS | 1998年 / 3175卷

关键词：

KDP crystal; PMTES protective coating; high laser damage threshold;

D O I：

10.1117/12.300645

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Large size Potassium dihydrogen phosphate (KDP) crystals were coated with a polymethyltriethoxysilane (PMTES) coating for environmental protection. The optical property and environmentally protective ability of coatings are investigated. The coatings have high transmission in the range of 200 similar to 1100 nm. On the conditions of wavelength 1.054 mu m and a pulse length 1 ns, the laser damage threshold of the coating is higher than 8.4 J/cm(2). It is found that the thresholds of the coatings are not obvious change below 80 degrees C and increase with the increasing of the cured temperature. The fogging phenomenon of the KDP crystals coated with PMTES coating has not been observed after more than one year in ambient atmosphere.

引用

页码：94 / 97

页数：4