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Perfect Metamaterial Absorber

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla
Phys. Rev. Lett. 100, 207402 – Published 21 May 2008

Abstract

We present the design for an absorbing metamaterial (MM) with near unity absorbance A(ω). Our structure consists of two MM resonators that couple separately to electric and magnetic fields so as to absorb all incident radiation within a single unit cell layer. We fabricate, characterize, and analyze a MM absorber with a slightly lower predicted A(ω) of 96%. Unlike conventional absorbers, our MM consists solely of metallic elements. The substrate can therefore be optimized for other parameters of interest. We experimentally demonstrate a peak A(ω) greater than 88% at 11.5 GHz.

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  • Received 6 November 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.207402

©2008 American Physical Society

Authors & Affiliations

N. I. Landy1, S. Sajuyigbe2, J. J. Mock2, D. R. Smith2, and W. J. Padilla1

  • 1Department of Physics, Boston College, 140 Commonwealth Avenue, Chestnut Hill, Massachusetts 02467, USA
  • 2Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27708, USA

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Issue

Vol. 100, Iss. 20 — 23 May 2008

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