Ultralow reflectance metal surfaces by ultrafast laser texturing

被引：67

作者：

Iyengar, Vikram V. ^{[1
]}

Nayak, Barada K. ^{[1
]}

Gupta, Mool C. ^{[1
]}

机构：

[1] Univ Virginia, Charles L Brown Dept Elect & Comp Engn, Charlottesville, VA 22903 USA

来源：

APPLIED OPTICS | 2010年 / 49卷 / 31期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

BLACK; ABSORPTANCE;

D O I：

10.1364/AO.49.005983

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the fabrication of textured metal surfaces by ultrafast laser processing and its optical property characterization by measurement of reflection and scattering as a function of angle and wavelength. The ultrafast laser textured metal surface reflection combined with scattering can be reduced to low values of similar to 3% over a broad spectral and angular range. Furthermore, it is shown that surface optical reflection and scattering can be varied by parameters like laser fluence, number of laser pulses, and coating the textured surfaces with suitable absorbers. It is also shown that ultrafast laser textured metal surfaces can have low surface reflection and scattering properties even at high temperatures (<= 500 degrees C) of operation. (C) 2010 Optical Society of America

引用

页码：5983 / 5988

页数：6

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