An optical magnetic metamaterial working at multiple frequencies simultaneously

  • Li Q
  • Lin W
  • Wang G
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Abstract

We theoretically design and experimentally demonstrate a multilayered optical magnetic metamaterial working at multiple frequencies simultaneously. The metamaterial is constructed with tapered ellipsoidal metal-dielectric-metal particles (EMDMPs), which is obtained through alternately depositing multiple layers of Ag and SiO(2) films on a dielectric template of ellipsoidal nanohole arrays created by holographic lithography and lift-off procedure. Transmission and reflection spectra measurements reveal that the metamaterial exhibits multiband magnetic resonances at near infrared due to the size variation of EMDMPs in depositing and lift-off procedures. Our results may prove a step towards the construction of realistic metamaterials for various photonics applications. (C) 2011 American Institute of Physics. [doi:10.1063/1.3617465]

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Authors

  • Qiuze Li

  • Weihua Lin

  • Guo Ping Wang

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