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Proceedings Paper

All-dielectric metamaterial: a ferroelectric-based scheme in the microwave range
Author(s): Thomas Lepetit; Eric Akmansoy; Jean-Pierre Ganne
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Paper Abstract

Dielectric metamaterials are an attractive alternative to metallic metamaterials in order to reduce losses. Mie resonances in dielectric resonators can give rise to a resonant effective permeability or permittivity at resonance frequencies. When resonances are sufficiently enhanced permeability or permittivity can become negative. In the microwave range 2D rodshaped or 3D cylinder-shaped resonators made of high-permittivity ferroelectric material can be used to demonstrate such phenomena. In the first part we present experimental proof for TE-modes in rod resonators in the X-band (8.20- 12.40GHz) using barium strontium titanate (Ba0.4Sr0.6TiO3, ε=575). In the second part we present experimental proof for modes in cylinder resonators in both the X and S-band (2.60-3.95GHz) using a commercial ceramic (ε=78). A negative index of refraction is shown in both cases.

Paper Details

Date Published: 1 September 2009
PDF: 10 pages
Proc. SPIE 7392, Metamaterials: Fundamentals and Applications II, 73920H (1 September 2009); doi: 10.1117/12.826185
Show Author Affiliations
Thomas Lepetit, Univ. Paris-Sud (France)
Thales Research & Technology (France)
Eric Akmansoy, Univ. Paris-Sud (France)
Jean-Pierre Ganne, Thales Research & Technology (France)

Published in SPIE Proceedings Vol. 7392:
Metamaterials: Fundamentals and Applications II
Mikhail A. Noginov; Nikolay I. Zheludev; Allan D. Boardman; Nader Engheta, Editor(s)

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