
Proceedings Paper
Numerical modeling of pseudo-isotropic negative refractive index mediaFormat | Member Price | Non-Member Price |
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Paper Abstract
The concept of negative refraction promises to rewrite the electromagnetic textbooks due to its corresponding
unprecedented properties including inverse Snell's law, inverse Doppler shift, and inverse Cherenkov radiation. Recently,
the first demonstration of negative refractive index media (NRIM) was realized by D.R. Smith et al. who integrated two
respective sets of sub-wavelength resonant structures (i.e., plasmonic wires and split-ring resonators) to exhibit negative
electric permittivity and magnetic permeability simultaneously. More recently, other resonant structures made of a single
set of unit cells also suggested negative refraction phenomena, enabling to ease the fabrication. Yet, all those resonant
structures behave anisotropically and thereby, currently it is still challenging to realize negative refraction for different
exciting incidences such as grazing-angle and normal incident configurations. In this paper, we design and simulate a
monolithic set of double-layer resonant structures not only possessing negative refraction, but also simultaneously
responding to both grazing-angle and normal incident excitations within microwave region. In accordance with the
results of S-parameter simulation and the retrieved material properties, we clearly observe two allowed narrow bands to
indicate the existence of pseudo-isotropic NRIM (PINRIM). Our results show that the designed monolithic set of
double-layer structures can extensively broaden the valuable applications of negative refraction owing to its
pseudo-isotropic response.
Paper Details
Date Published: 4 May 2007
PDF: 11 pages
Proc. SPIE 6581, Metamaterials II, 65810Y (4 May 2007); doi: 10.1117/12.722725
Published in SPIE Proceedings Vol. 6581:
Metamaterials II
Vladimir Kuzmiak; Peter Markos; Tomasz Szoplik, Editor(s)
PDF: 11 pages
Proc. SPIE 6581, Metamaterials II, 65810Y (4 May 2007); doi: 10.1117/12.722725
Show Author Affiliations
Published in SPIE Proceedings Vol. 6581:
Metamaterials II
Vladimir Kuzmiak; Peter Markos; Tomasz Szoplik, Editor(s)
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