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Proceedings Paper

Plasmon-based nano-lenses
Author(s): Petru Ghenuche; Romain Quidant; Goncal Badenes
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Paper Abstract

In the ongoing general trend for miniaturization, there is an increasing interest in the manipulation of electromagnetic fields at the nanometer scale. A main obstacle to this goal is the diffraction limit that prevents from focussing light down to volumes much smaller than the incident wavelength. In order to overcome this limitation, it has been proposed to deal with evanescent fields instead of the conventional propagating beams. Especially, plasmon fields bound at a noble metal interface or around metal nanostructures have shown to be very suitable to control the light confinement down to the nanometer scale. In this work we investigate the near-field coupling in finite metal particle chain geometry. The Green Dyadic method is used to demonstrate that high enhancement factors can be achieved by exploiting the in-plane forward scattering of the particles, with no need for cumbersome geometries with nanometer features.

Paper Details

Date Published: 7 July 2005
PDF: 8 pages
Proc. SPIE 5840, Photonic Materials, Devices, and Applications, (7 July 2005); doi: 10.1117/12.608341
Show Author Affiliations
Petru Ghenuche, ICFO-Institut de Ciencies Fotoniques (Spain)
Romain Quidant, ICFO-Institut de Ciencies Fotoniques (Spain)
Goncal Badenes, ICFO-Institut de Ciencies Fotoniques (Spain)


Published in SPIE Proceedings Vol. 5840:
Photonic Materials, Devices, and Applications
Goncal Badenes; Derek Abbott; Ali Serpenguzel, Editor(s)

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