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Metamaterial absorber with random dendritic cells

Published online by Cambridge University Press:  26 March 2010

Weiren Zhu
Affiliation:
Smart Materials Laboratory, Department of Applied Physics, Northwestern Polytechnical University, Xi'an, 710129, P.R. China
Xiaopeng Zhao*
Affiliation:
Smart Materials Laboratory, Department of Applied Physics, Northwestern Polytechnical University, Xi'an, 710129, P.R. China
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Abstract

The metamaterial absorber composed of random dendritic cells has been investigated at microwave frequencies. It is found that the absorptivities come to be weaker and the resonant frequency get red shift as the disordered states increasing, however, the random metamaterial absorber still presents high absorptivity more than 95%. The disordered structures can help understanding of the metamaterial absorber and may be employed for practical design of infrared metamaterial absorber, which may play important roles in collection of radiative heat energy and directional transfer enhancement.

Type
Research Article
Copyright
© EDP Sciences, 2010

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