期刊
OPTIK
卷 126, 期 23, 页码 4254-4258出版社
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2015.08.044
关键词
High reflection film; Long-pulse and short-pulse lasers; Different angles; Temperature field; Laser damage
类别
资金
- National Natural Science Foundation of China [11204139]
- Fund for Outstanding Young Teachers of Nanjing Xiaozhuang University [2011NXY71]
Modeling laser beam as a tapered wave with a Gaussian spectrum, The temperature fields in HfO2/SiO2 high-reflection (HR) film, induced by 1 ms long-pulse and 10 ns short-pulse lasers, under different incident angles are calculated. The damage differences between long-pulse and short-pulse-induced damage in the HR film are analyzed. The results show for long-pulse laser, the temperature distribution is much less affected by the laser field effect than short-pulse case. Furthermore, as the irradiation angles increase from 0 to 35 degrees for 1 ms and 10 ns lasers, the peak temperature rises in the HR film increase for s polarized laser. Other than long-pulse laser, for short-pulse laser, the positions of the peak temperature shift gradually toward the air-film interface as the incident angle increases, which may have a great influence on the position of thermal stress coupling and damage probability. (C) 2015 Elsevier GmbH. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据