TITLE

Interplay between plastic deformations and optical properties of metal surfaces: A multiscale study

AUTHOR(S)
Glazoff, Michael V.; Rashkeev, Sergey N.; Pyt'ev, Yuri P.; Jeong-Whan Yoon; Sheu, Simon
PUB. DATE
August 2009
SOURCE
Applied Physics Letters;8/24/2009, Vol. 95 Issue 8, p084106
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Plastic deformations and instabilities may significantly change the surface geometry at macro-, meso-, and nanoscales. Here we investigate an interplay of different plastic instabilities emerging in the course of plastic deformation and optical properties of metal surface. It is demonstrated that optical reflectivity of aluminum surface could be significantly suppressed by a simple uniaxial stretching. On the other hand, embossing certain engineered features into the metal surface could make it significantly brighter. These results provide guidelines for the control of metal surface morphology in order to achieve desirable optical characteristics such as high reflectance and omnidirectional coloration.
ACCESSION #
43944826

 

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