Temperature dependence of laser-induced damage threshold of optical coatings at different pulse widths

被引：16
|
作者：
Mikami, Katsuhiro [1 ,2 ]
Motokoshi, Shinji [3 ]
Somekawa, Toshihiro [3 ]
Jitsuno, Takahisa [1 ]
Fujita, Masayuki [3 ]
Tanaka, Kazuo A. [2 ]
机构：
[1] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan
[2] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan
[3] Inst Laser Technol, Nishi Ku, Osaka 5500004, Japan
来源：
OPTICS EXPRESS | 2013年 / 21卷 / 23期
基金：
日本学术振兴会;
关键词：
INDUCED BREAKDOWN; MULTIPHOTON ABSORPTION; SCALING LAWS; NANOSECOND; CRYSTALLINE; MECHANISM; CENTERS; FIELD;
D O I：
10.1364/OE.21.028719
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The temperature dependence of the laser-induced damage threshold on optical coatings was studied in detail for laser pulses from 123 K to 473 K at different temperature. For pulses longer than a few picoseconds, the laser-induced damage threshold of coated substrates increased with decreasing temperature. This temperature dependence was reversed for pulses shorter than a few picoseconds. We describe the physics models to explain the observed scaling. The electron avalanche is essential to explain the differences in the temperature dependence. (C) 2013 Optical Society of America
引用
收藏
页码：28719 / 28728
页数：10
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