Geometrical method for determining the surface damage threshold for femtosecond laser pulses

被引：36
|
作者：
Samad, R. E. [1 ]
Vieira, N. D., Jr. [1 ]
机构：
[1] IPEN, CNEN SP, Ctr Lasers & Applicat, BR-05508000 Sao Paulo, Brazil
来源：
LASER PHYSICS | 2006年 / 16卷 / 02期
关键词：
D O I：
10.1134/S1054660X06020228
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new geometrical method to determine the surface damage threshold for ultrashort pulses is presented. It consists in the formation of a surface damage profile by a movement of the sample across the laser beam focus. A single measurement of the maximum transversal dimension of this damage profile, which depends solely on the laser beam power, is used to calculate the local damage threshold intensity. It is also theoretically shown that the damage in the transverse dimension can be controlled under the diffraction-limited spot.
引用
收藏
页码：336 / 339
页数：4
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