Spoof Plasmons: Dominos, Endoscopes and Invisibility Cloaks

seminar_photoWednesday, 17 November 2010, 12:00-13.00

Prof. Francisco J. García Vidal

Departamento de Física Teórica de la Materia Condensada, UAM


In this talk we will review two different routes for controlling the flow of surface plasmons (SPs) at metal surfaces. First, we will show how the concept of spoof SPs [1] (introduction of a periodic modulation on a metal surface at a length scale much smaller than the wavelength) can be used to tailor the propagation characteristics of SPs in the optical and telecom regimes [2] and even to create new types of SPs as, for example, domino plasmons [3]. Second, we will demonstrate how Transformation Optics can be applied to the propagation of SPs [4], yielding to recipes for the refractive index map that can lead to several SP-functionalities and to cloaking devices for SPs. In addition, we will show how the idea of spoof SPs can be extended to develop holey-structured metamaterials able to perform very deep subwavelength imaging [5].

[1] Mimicking surface plasmons with structured surfaces, J.B. Pendry, L. Martin-Moreno and F.J. Garcia-Vidal, Science 305, 847 (2004).
[2] Geometrically induced modification of surface plasmons in the optical and telecom regimes, M.L. Nesterov, D. Martin-Cano, A.I. Fernandez-Dominguez, E. Moreno, L. Martin-Moreno and F.J. Garcia-Vidal, Opt. Lett. 35, 423 (2010).
[3] Domino plasmons for subwavelength terahertz circuitry, D. Martin-Cano, M.L. Nesterov, A.I. Fernandez-Dominguez, F.J. Garcia-Vidal, L. Martin-Moreno and E. Moreno, Opt. Express 18, 754 (2010).
[4] Transformation Optics for Plasmonics, P.A. Huidobro, M.L. Nesterov, L. Martin-Moreno and F.J. Garcia-Vidal, Nano Letters 10, 1985 (2010).

[5] A holey-structured metamaterial for deep acoustic deep subwavelength imaging, J. Zhu, J. Christensen, J. Jung, L. Martin-Moreno, X. Yin, L. Fok, X. Zhang and F.J. Garcia-Vidal, Nature Physics (AOP, November 7th 2010)

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