Studies of plasmonic hot-spot translation by a metal-dielectric layered superlens

Thoreson, Mark D.; Nielsen, Rasmus; West, Paul R.; Kriesch, Arian; Liu, Zhengtong; Fang, Jieran; Kildishev, Alexander V.; Peschel, Ulf; Shalaev, Vladimir M.; Boltasseva, Alexandra

doi:10.1117/12.894225

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“…Once the permittivity requirement is removed, it is possible to design a superlens in a broad spectral range with several materials. Many devices and applications, such as nanoantennasuperlenses [16,17], can greatly benefit from this finding.…”

Section: Discussionmentioning

confidence: 98%

Coupling effect in a near-field object–superlens system

2012

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The coupling effect in a near-field object-superlens system has been studied, where the object is a silver cylinder and the superlens is a silver slab. A semi-analytical formulation has been established to study the system with and without the coupling effect. The analysis shows that the coupling effect significantly changes the field distributions of both the object and the image, leading to the conclusion that such a system must be designed and analyzed as a whole. Our study also suggests that it is possible to design a superlens system with mismatched permittivities.

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Section: Discussionmentioning

confidence: 98%