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Sub-wavelength Focusing and Negative Refraction along Positive-Index and Negative-Index Plasmonic Nano-Transmission Lines and Nano-Layers
Departmental Papers (ESE)
  • Andrea Alù, University of Pennsylvania
  • Nader Engheta, University of Pennsylvania
Abstract
Following our recent works on the concept of plasmonic nano-inductors and nano-capacitors and related complex circuits, here we analyze the possibility of designing nano-transmission-lines (NTL) made of these basic nano-elements. We show that in the limit in which these basic circuit elements are very close to each other, they can be regarded as planar stacks of plasmonic and nonplasmonic slabs, which may be designed to act as forward (right-handed) or backward (lefthanded) NTL. Negative refraction and left-handed propagation are shown to be possible in these planar plasmonic configurations, potentially applicable in several innovative setups for subwavelength focusing, imaging and waveguiding applications.
Document Type
Conference Paper
Date of this Version
7-3-2005
Comments
Copyright 2005 IEEE. Reprinted from Proceedings of the 2005 IEEE Antennas and Propagation Society International Symposium, Volume 1A, pages 35-38.

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Citation Information
Andrea Alù and Nader Engheta. "Sub-wavelength Focusing and Negative Refraction along Positive-Index and Negative-Index Plasmonic Nano-Transmission Lines and Nano-Layers" (2005)
Available at: http://works.bepress.com/nader_engheta/43/