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Proceedings Paper

Mid-infrared field concentration of electrically generated surface plasmons polaritons
Author(s): A. Bousseksou; J.-P. Tetienne; R. Colombelli; A. Babuty; N. Rungsawang; Y. De Wilde; G. Beaudoin; I. Sagnes
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Paper Abstract

Surface-plasmon polaritons (SPPs) are electromagnetic waves which are bound at a metal/dielectric interface. SPPs dispersion relation allows bent propagation and can lead to sub-wavelength energy concentration. These properties, well known in the visible and near-infrared, are lost at mid-infrared and THz wavelengths. Here we demonstrate an integrated device which is able to recover and exploit the confinement properties of SPPs. It operates in the mid-infrared wavelengths by electrical injection, It generates plasmonic excitations whose dispersion is artificially tailored via proper patterning of a purely metallic surface. We illustrate the power of this approach by demonstrating bending, focusing and sub-wavelength energy concentration. We demonstrate a compact (<0.1 mm2) device, which is electrically driven and is able to generate, couple, propagate on a chip over macroscopic distances, and focus mid infrared radiation into a subwavelength region.

Paper Details

Date Published: 20 January 2012
PDF: 7 pages
Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 826803 (20 January 2012); doi: 10.1117/12.906738
Show Author Affiliations
A. Bousseksou, Institut d'Electronique Fondamentale, CNRS, Univ. Paris-Sud 11 (France)
J.-P. Tetienne, Institut d'Electronique Fondamentale, CNRS, Univ. Paris-Sud 11 (France)
R. Colombelli, Institut d'Electronique Fondamentale, CNRS, Univ. Paris-Sud 11 (France)
A. Babuty, Institut Langevin, CNRS, ESPCI ParisTech (France)
N. Rungsawang, Institut Langevin, CNRS, ESPCI ParisTech (France)
Y. De Wilde, Institut Langevin, CNRS, ESPCI ParisTech (France)
G. Beaudoin, Lab. de Photonique et de Nanostructures, CNRS (France)
I. Sagnes, Lab. de Photonique et de Nanostructures, CNRS (France)


Published in SPIE Proceedings Vol. 8268:
Quantum Sensing and Nanophotonic Devices IX
Manijeh Razeghi; Eric Tournie; Gail J. Brown, Editor(s)

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