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Title: Capturing photons with transformation optics
Authors: Luo, Yu
Zhao, Rongkuo
Fernández-Domínguez, A.I.
Pendry, J.B.
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Issue Date: 2013
Series/Report no.: Nature physics
Abstract: Metallic objects in close contact and illuminated by light show spectacular enhancements of electromagnetic fields, due to excitation of surface plasmons, which have potential for exploitation in ultra sensitive spectroscopy and in nonlinear phenomena. They also play a role in Van der Waals forces, heat transfer, and non contact friction. The extremes of length scales, varying from the micron to the sub nano, challenge direct computational attack. Here we show that the new technique of transformation optics enables an analytic approach which offers both physical insight and easy access to quantitative analysis. For two metal spheres at various separations we present details of the new technique, discuss the optical absorption spectrum, spatial distribution of the modes, and the Van der Waals forces.
ISSN: 1745-2481
DOI: 10.1038/nphys2667
Schools: School of Electrical and Electronic Engineering 
Rights: © 2013 [Macmillan Publishers Ltd.] This is the author created version of a work that has been peer reviewed and accepted for publication by [Nature Physics], [Macmillan Publishers Ltd.]. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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