Modification of Multilayer Mirror Top-Layer Design for Increased Laser Damage Resistance

被引：5

作者：

Schiltz, D. ^{[1
]}

Patel, D. ^{[1
]}

Emmert, L. ^{[2
]}

Baumgarten, C. ^{[1
]}

Reagan, B. ^{[1
]}

Rudolph, W. ^{[2
]}

Rocca, J. J. ^{[1
]}

Menoni, C. S. ^{[1
]}

机构：

[1] Colorado State Univ, Elect & Comp Engn, Ft Collins, CO 80523 USA

[2] Univ New Mexico, Phys & Astron, Albuquerque, NM 87131 USA

来源：

LASER-INDUCED DAMAGE IN OPTICAL MATERIALS: 2014 | 2014年 / 9237卷

基金：

美国国家科学基金会;

关键词：

multilayer coating; laser induced damage threshold; ion beam sputtering; tantala; Ta2O5; laser mirror; high reflector; THIN-FILMS; COATINGS;

D O I：

10.1117/12.2068244

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work focuses on the optimization of a high reflector design for operation at 1 mu m wavelength to achieve a high laser damage threshold when tested at pulse durations of 0.19 and 4 ns. Different designs that modify the standing wave electric field distribution of a quarter wave Ta2O5/SiO2 multilayer dielectric coating are considered. It is found that the addition of an extra SiO2 quarter wave to reduce the peak electric field in the coating, increases the 50% damage probability by over 100% at both pulse durations.

引用

页数：7

共 19 条

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