Transformation Optics for Plasmonics
Paloma A. Huidobro, Maxim L. Nesterov, Luis Martin-Moreno and, Francisco J. Garcia-Vidal
TL;DR
This paper introduces a novel approach using Transformation Optics to manipulate surface plasmon polaritons on metallic surfaces, enabling advanced control of plasmonic wave propagation.
Contribution
It develops a general methodology for designing Transformation-Optical devices for surface plasmons, demonstrated through three functional examples.
Findings
Design of plasmonic beam shifter, cloak, and ground-plane cloak.
Effective control of surface plasmon flow demonstrated.
Methodology applicable to various plasmonic device designs.
Abstract
A new strategy to control the flow of surface plasmon polaritons at metallic surfaces is presented. It is based on the application of the concept of Transformation Optics to devise the optical parameters of the dielectric medium placed on top of the metal surface. We describe the general methodology for the design of Transformation-Optical devices for surface plasmons and analyze, for proof-of-principle purposes, three representative examples with different functionalities: a beam shifter, a cylindrical cloak and a ground-plane cloak.
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