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A spherical perfect lens

S. Anantha Ramakrishna·J. B. Pendry
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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 $ε(r) \sim 1/r$ and $μ(r)\sim 1/r$. 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 $μ$ and $ε$ respectively.

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S. Anantha Ramakrishna, J. B. Pendry. 2003-11-10. A spherical perfect lens. https://doi.org/10.1103/physrevb.69.115115

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