Enhanced optical absorptance of metals using interferometric femtosecond ablation

被引：58

作者：

Paivasaari, K. ^{[1
]}

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

Kuittinen, M. ^{[1
]}

Jaaskelainen, T. ^{[1
]}

机构：

[1] Univ Joensuu, Dept Phys & Math, FIN-80101 Joensuu, Finland

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 21期

关键词：

D O I：

10.1364/OE.15.013838

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The enhanced optical absorptance in metals was recently demonstrated using femtosecond laser-induced surface structuring. This structuring was obtained by simply focusing the light to the sample surface. Here we demonstrate more efficient absorptance enhancement using interferometric ablation. This interferometric ablation technique produces deeper surface structures and, consequently, higher absorption than structures obtained by just focusing the light to the surface. We also show the measured reflectance spectra over visible region for unaltered and structured stainless steel and copper samples. (c) 2007 Optical Society of America.

引用

页码：13838 / 13843

页数：6

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