材料科学
飞秒
吸收率
激光器
光电子学
光学
微尺度化学
光子学
等离子体子
紫外线
红外线的
黑硅
反射率
物理
硅
数学教育
数学
作者
A. Y. Vorobyev,Chunlei Guo
标识
DOI:10.1109/mwscas.2009.5235913
摘要
Using a femtosecond laser processing technique, we produce technologically important black metals (Au, W) and black Ti90/Al6/V4 alloy with absorptance of about 85-95% over a broad wavelength range from ultraviolet to infrared. From scanning electron microscopy we find that the enhanced absorption of the black metals is caused by a rich variety of nano- and microscale surface structures. The black metals produced in our study may find applications in photonics, plasmonics, stealth technology, airborne/spaceborne devices, broadband thermal radiation sources, solar energy absorbers, radiative heat transfer devices, thermophotovoltaics, and biomedicine.
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