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Opt Express. 2003 Apr 7;11(7):682-7.

Regenerating evanescent waves from a silver superlens.

Abstract

We investigated a precursor of superlensing: regenerating evanescent waves by excitation of a surface plasmon. Because the permittivity of a silver slab approaches -1, we experimentally observed a broadening of surface-plasmon bandwidth. Our study identifies a means to access deep subwavelength features by use of a metamaterial superlens.

PMID:
19461779
[PubMed]
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