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Applied Physics Letters / Volume 97 / Issue 5 / STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER

Appl. Phys. Lett. 97, 051906 (2010); http://dx.doi.org/10.1063/1.3477960 (3 pages)

Switchable metamaterial reflector/absorber for different polarized electromagnetic waves

Bo Zhu, Yijun Feng, Junming Zhao, Ci Huang, and Tian Jiang

Department of Electronic Engineering, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, People's Republic of China

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(Received 8 June 2010; accepted 19 July 2010; published online 5 August 2010)

We demonstrate a controllable electromagnetic wave reflector/absorber for different polarizations with metamaterial involving electromagnetic resonant structures coupled with diodes. Through biasing at different voltages to turn ON and OFF the diodes, we are able to switch the structure between nearly total reflection and total absorption of a particularly polarized incident wave. By arranging orthogonally orientated resonant cells, the metamaterial can react to different polarized waves by selectively biasing the corresponding diodes. Both numerical simulations and microwave measurements have verified the performance.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

electromagnetic wave polarisation, light absorption, light polarisation, light reflection, metamaterials

PACS

  • 41.20.Jb

    Electromagnetic wave propagation; radiowave propagation

  • 42.25.Ja

    Polarization

  • 78.20.Ci

    Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)

  • 42.70.-a

    Optical materials

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3477960

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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