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Opt Express. 2007 Dec 24;15(26):17709-14.

When does the choice of the refractive index of a linear, homogeneous, isotropic, active, dielectric medium matter?

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  • 1Department of Engineering Science & Mechanics, Pennsylvania State University, University Park, PA 16802, USA.

Abstract

Two choices are possible for the refractive index of a linear, homogeneous, isotropic, active, dielectric material. Either of the choices is adequate for obtaining frequency-domain solutions for (i) scattering by slabs, spheres, and other objects of bounded extent; (ii) guided--wave propagation in homogeneously filled, cross-sectionally uniform, straight waveguide sections with perfectly conducting walls; and (iii) image formation due to flat lenses. The correct choice does matter for the half-space problem, but that problem is not realistic.

PMID:
19551067
[PubMed - indexed for MEDLINE]
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