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Metamaterial Electromagnetic Superabsorber with Arbitrary Geometries

Author

Listed:
  • Jingjing Yang

    (School of Information Science and Engineering, Yunnan University, Kunming 650091, China
    Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China)

  • Ming Huang

    (School of Information Science and Engineering, Yunnan University, Kunming 650091, China)

  • Chengfu Yang

    (School of Information Science and Engineering, Yunnan University, Kunming 650091, China)

  • Jinhui Peng

    (Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China)

  • Rong Zong

    (School of Information Science and Engineering, Yunnan University, Kunming 650091, China)

Abstract

The electromagnetic superabsorber that has larger absorption cross section than its real size may be a novel photothermal device with improved solar energy conversion rates. Based on a transformation optical approach, the material parameters for a two-dimensional (2D) metamaterial-assisted electromagnetic superabsorber with arbitrary geometries are derived and validated by numerical simulation. We find that for the given geometry size, the absorption cross section of the superabsorber using nonlinear transformation is larger than that using linear transformation. These transformations can also be specialized to the designing the N-sided regular polygonal superabsorber just by changing the contour equation. All theoretical and numerical results validate the material parameters for the 2D electromagnetic superabsorber we have developed.

Suggested Citation

  • Jingjing Yang & Ming Huang & Chengfu Yang & Jinhui Peng & Rong Zong, 2010. "Metamaterial Electromagnetic Superabsorber with Arbitrary Geometries," Energies, MDPI, vol. 3(7), pages 1-9, June.
    • Handle: RePEc:gam:jeners:v:3:y:2010:i:7:p:1335-1343:d:8819
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