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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 3 — Mar. 1, 2006
  • pp: 553–570

Volumetric layered transmission-line metamaterial exhibiting a negative refractive index

Ashwin K. Iyer and George V. Eleftheriades  »View Author Affiliations


JOSA B, Vol. 23, Issue 3, pp. 553-570 (2006)
http://dx.doi.org/10.1364/JOSAB.23.000553


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Abstract

We examine a new class of volumetric metamaterials based on two-dimensional (2D) transmission-line layers that exhibit a negative refractive index (NRI). The dispersion characteristics of a single 2D layer are revealed through a periodic analysis, and the effective-medium response of the volumetric layered topology is predicted by an intuitive equivalent circuit model. Dispersion and transmission characteristics are also obtained for various designs by using full-wave finite-element method (FEM) simulations, including one design meeting the requirements of Veselago’s slab lens in free space, and suggest an isotropic NRI over bandwidths anywhere from 25% to 45%. Finally, the potential to implement these metamaterials from terahertz to near-infrared and optical frequencies is discussed.

© 2006 Optical Society of America

OCIS Codes
(160.0160) Materials : Materials
(220.3630) Optical design and fabrication : Lenses
(230.3990) Optical devices : Micro-optical devices
(350.4010) Other areas of optics : Microwaves

ToC Category:
Metamaterials

History
Original Manuscript: July 11, 2005
Manuscript Accepted: August 21, 2005

Citation
Ashwin K. Iyer and George V. Eleftheriades, "Volumetric layered transmission-line metamaterial exhibiting a negative refractive index," J. Opt. Soc. Am. B 23, 553-570 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-3-553

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