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The plasmon Talbot effect

The plasmon Talbot effect
The plasmon Talbot effect
The plasmon analog of the self-imaging Talbot effect is described and theoretically analyzed. Rich plasmon carpets containing hot spots are shown to be produced by a row of periodically-spaced surface features. A row of holes drilled in a metal film and illuminated from the back side is discussed as a realizable implementation of this concept. Self-images of the row are produced, separated from the original one by distances up to several hundreds of wavelengths in the examples under consideration. The size of the image focal spots is close to half a wavelength and the spot positions can be controlled by changing the incidence direction of external illumination, suggesting the possibility of using this effect (and its extension to non-periodic surface features) for far-field patterning and for long-distance plasmon-based interconnects in plasmonic circuits, energy transfer, and related phenomena.
surface plasmons, talbot and self-imaging effects, diffraction gratings
1094-4087
9692-9700
Dennis, M.R.
ff55cf66-eb8b-4eb9-83eb-230c2f223d61
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
García de Abajo, F.J.
68958b41-966f-49ef-9578-d0ffa446b33e
Dennis, M.R.
ff55cf66-eb8b-4eb9-83eb-230c2f223d61
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
García de Abajo, F.J.
68958b41-966f-49ef-9578-d0ffa446b33e

Dennis, M.R., Zheludev, N.I. and García de Abajo, F.J. (2007) The plasmon Talbot effect. Optics Express, 15 (15), 9692-9700. (doi:10.1364/OE.15.009692).

Record type: Article

Abstract

The plasmon analog of the self-imaging Talbot effect is described and theoretically analyzed. Rich plasmon carpets containing hot spots are shown to be produced by a row of periodically-spaced surface features. A row of holes drilled in a metal film and illuminated from the back side is discussed as a realizable implementation of this concept. Self-images of the row are produced, separated from the original one by distances up to several hundreds of wavelengths in the examples under consideration. The size of the image focal spots is close to half a wavelength and the spot positions can be controlled by changing the incidence direction of external illumination, suggesting the possibility of using this effect (and its extension to non-periodic surface features) for far-field patterning and for long-distance plasmon-based interconnects in plasmonic circuits, energy transfer, and related phenomena.

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More information

Published date: 23 July 2007
Keywords: surface plasmons, talbot and self-imaging effects, diffraction gratings

Identifiers

Local EPrints ID: 49789
URI: https://eprints.soton.ac.uk/id/eprint/49789
ISSN: 1094-4087
PURE UUID: 9e4e9390-3e77-47cd-b59f-e9b2af780980
ORCID for N.I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 04 Dec 2007
Last modified: 03 Dec 2019 02:03

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Contributors

Author: M.R. Dennis
Author: N.I. Zheludev ORCID iD
Author: F.J. García de Abajo

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