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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 33, Iss. 22 — Nov. 15, 2008
  • pp: 2683–2685

Negative-index metamaterial with polymer-embedded wire-pair structures at terahertz frequencies

Mohammad Awad, Michael Nagel, and Heinrich Kurz  »View Author Affiliations

Optics Letters, Vol. 33, Issue 22, pp. 2683-2685 (2008)

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Experimental demonstrations of metamaterials with negative index of refraction have been limited to microwave and IR frequencies. In this work, a freestanding multilayer thin-film metamaterial showing a strong negative index of refraction at terahertz frequencies is fabricated and characterized. The metamaterial consists of periodically arranged H-shaped wire-pair resonant structures separated by a 14.5 - μ m -thick and enclosed between two 26 - μ m -thick layers of benzocyclobutene polymer. Complex reflection and transmission parameters of the metamaterial are measured via terahertz time-domain spectroscopy and are used for the extraction of refractive material properties. Our results show good agreement with finite element field simulations.

© 2008 Optical Society of America

OCIS Codes
(160.3918) Materials : Metamaterials
(310.4165) Thin films : Multilayer design

ToC Category:

Original Manuscript: March 10, 2008
Revised Manuscript: September 1, 2008
Manuscript Accepted: September 5, 2008
Published: November 14, 2008

Mohammad Awad, Michael Nagel, and Heinrich Kurz, "Negative-index metamaterial with polymer-embedded wire-pair structures at terahertz frequencies," Opt. Lett. 33, 2683-2685 (2008)

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