Analytical solution of the almost-perfect-lens problem
- 23 February 2004
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 84 (8), 1290-1292
- https://doi.org/10.1063/1.1650548
Abstract
The problem of imaging for a slab of a lossless left-handed material with refractive index n = −(1−σ)1/2n=−(1−σ)1/2 is solved analytically for ∣σ∣≪1. The electromagnetic field behavior is determined largely by singularities arising from the excitation of surface polaritons with wave vector q→±∞.q→±∞. Depending on the sign of σ, the near-field is either odd or even with respect to the lens middle plane. Consistent with other nonanalytical studies, the resolution depends logarithmically on ∣σ∣. With minor alterations, these results apply as well to the electrostatic limit. © 2004 American Institute of PhysicsKeywords
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