Wide-angle perfect absorber/thermal emitter in the terahertz regime

Marcus Diem, Thomas Koschny, and C. M. Soukoulis
Phys. Rev. B 79, 033101 – Published 7 January 2009

Abstract

We show that a perfect absorber/thermal emitter exhibiting an absorption peak of 99.9% can be achieved in metallic nanostructures that can be easily fabricated. The very high absorption is maintained for large angles with a minimal shift in the center frequency and can be tuned throughout the visible and near-infrared regime by scaling the nanostructure dimensions. The stability of the spectral features at high temperatures is tested by simulations using a range of material parameters.

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  • Received 9 November 2008

DOI:https://doi.org/10.1103/PhysRevB.79.033101

©2009 American Physical Society

Authors & Affiliations

Marcus Diem1,*, Thomas Koschny1,2, and C. M. Soukoulis1,2

  • 1Department of Physics and Astronomy and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
  • 2Department of Material Science and Technology and Institute of Electronic Structure and Laser (IESL), Foundation for Research Technology Hellas (FORTH), University of Crete, 71110 Heraklion, Crete, Greece

  • *diem@ameslab.gov

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Issue

Vol. 79, Iss. 3 — 15 January 2009

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