Protected silver coating for astronomical mirrors

被引：19

作者：

Thomas, N ^{[1
]}

Wolfe, J ^{[1
]}

Farmer, J ^{[1
]}

机构：

[1] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

ADVANCED TECHNOLOGY OPTICAL/IR TELESCOPES VI | 1998年 / 3352卷

关键词：

D O I：

10.1117/12.319243

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A durable protected silver coating was designed and fabricated for use on flashlamp reflectors in the National Ignition Facility (NIF) to avoid tarnishing under corrosive conditions and intense visible light. This coating provides a valuable alternative for telescope mirror coatings where high reflectance and durability are important requirements. This paper describes a protected silver coating having high reflectance from 400 nm to 10,000 nm. An alternate coating design extends the high reflectance down to 300 nm while maintaining high reflectance out to 10,000 nm The specular reflectance is between 95% and 97% in the visible region and 98% or better in the infrared region.

引用

页码：580 / 586

页数：7