Direct volume variation measurements in fused silica specimens exposed to femtosecond laser

被引：69
|
作者：
Champion, Audrey [1 ]
Bellouard, Yves [1 ]
机构：
[1] Eindhoven Univ Technol, Dept Mech Engn, NL-5600 MB Eindhoven, Netherlands
来源：
OPTICAL MATERIALS EXPRESS | 2012年 / 2卷 / 06期
关键词：
GLASS; BIREFRINGENCE; DENSIFICATION; FABRICATION;
D O I：
10.1364/OME.2.000789
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We introduce a new method to investigate localized volume variations resulting from laser exposure. Our method is based on the measurement of fused silica cantilevers deflection from which we calculate the effective stress and density variation in laser-affected zones. Specifically, we investigate density variations in fused silica exposed to femtosecond laser exposure in the regime where nanogratings are found. We demonstrate that a volume expansion is taking place in that particular regime. (C)2012 Optical Society of America
引用
收藏
页码：789 / 798
页数：10
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