A spherical perfect lens

Abstract

It has been recently proved that a slab of negative refractive index material acts as a perfect lens in that it makes accessible the sub-wavelength image information contained in the evanescent modes of a source. Here we elaborate on perfect lens solutions to spherical shells of negative refractive material where magnification of the near-field images becomes possible. The negative refractive materials then need to be spatially dispersive with $\epsilon (r)\sim 1/r$ and $\mu (r)\sim 1/r$. We concentrate on lens-like solutions for the extreme near-field limit. Then the conditions for the TM and TE polarized modes become independent of $\mu$ and $\epsilon$ respectively.

Revtex4, 9 pages, 2 figures (eps)

References in corpus (9)

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• Refraction at Media with Negative Refractive Index
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• The asymmetric lossy near-perfect lens
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• Amplification of evanescent waves in a lossy left-handed material slab
• Questions of perfect lenses by left handed materials

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