Ultrawideband Dispersion Control of a Metamaterial Surface for Perfectly-Matched-Layer-Like Absorption
Name
Ye-2013-Ultrawideband dispersion control.pdf
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1.39 MB
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Checksum (MD5)
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Author(s)
Ye, Dexin
Wang, Zhiyu
Xu, Kuiwen
Li, Huan
Huangfu, Jiangtao
Wang, Zheng
Ran, Lixin
Date Issued
October 2013
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Ye, Dexin, Zhiyu Wang, Kuiwen Xu, Huan Li, Jiangtao Huangfu, Zheng Wang, and Lixin Ran. “Ultrawideband Dispersion Control of a Metamaterial Surface for Perfectly-Matched-Layer-Like Absorption.” Physical Review Letters 111, no. 18 (October 2013). © 2013 American Physical Society
Version
Final published version
Abstract
Narrow bandwidth is a fundamental issue plaguing practical applications of metamaterial absorbers. In this Letter, we show that by deliberately controlling the dispersion and dissipation of a metamaterial, an ultrawideband perfect metamaterial absorber with complex-valued constitutive parameters strictly satisfying the modified model of a perfectly matched layer, can be achieved. The nearly perfect power absorption, better than 99%, was experimentally observed in an unprecedented bandwidth of 39%, approaching the theoretical Rozanov limit. We expect a wide range of applications to emerge from this general concept.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.111.187402
