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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 12 — Dec. 1, 2007
  • pp: 3014–3022

Parallel, series, and intermediate interconnections of optical nanocircuit elements. 2. Nanocircuit and physical interpretation

Andrea Alù, Alessandro Salandrino, and Nader Engheta  »View Author Affiliations


JOSA B, Vol. 24, Issue 12, pp. 3014-3022 (2007)
http://dx.doi.org/10.1364/JOSAB.24.003014


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Abstract

Applying the analytical closed-form solutions of the “quasi-static” potential distribution around two conjoined resonant half-cylinders with different permittivities, reported in the first part of this manuscript, here we interpret these results in terms of our nanocircuit paradigm applicable to nanoparticles at infrared and optical frequencies [ Phys. Rev. Lett. 95, 095504 (2005) ]. We investigate the possibility of connecting in series and parallel configurations plasmonic and/or dielectric nanoparticles acting as nanocircuit elements, with a goal for the design of a more-complex nanocircuit system with the desired response. The present analysis fully validates the heuristic predictions regarding the parallel and series combination of a pair of nanocircuit elements depending on their relative orientation with respect to the field polarization. Moreover, the geometries under analysis present interesting peculiar features in their wave interaction, such as an “intermediate” stage between the parallel and series configurations, which may be of interest for certain applications. In particular, the resonant nanocircuit configuration analyzed here may dramatically change, in a continuous way, its effective total impedance by simply rotating its orientation with respect to the polarization of the impressed optical electric field, providing a novel optical nanodevice that may alter its function by rotation with respect to the impressed optical local field.

© 2007 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(290.5850) Scattering : Scattering, particles
(350.4600) Other areas of optics : Optical engineering

ToC Category:
Optics at Surfaces

History
Original Manuscript: June 11, 2007
Revised Manuscript: September 18, 2007
Manuscript Accepted: October 7, 2007
Published: November 19, 2007

Citation
Andrea Alù, Alessandro Salandrino, and Nader Engheta, "Parallel, series, and intermediate interconnections of optical nanocircuit elements. 2. Nanocircuit and physical interpretation," J. Opt. Soc. Am. B 24, 3014-3022 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-12-3014


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  20. This is why in Fig. we did not sketch any circuit model in the inset; in this more general configuration there is no standard equivalent circuit connection modeling the current flow and voltage drop across the nanocircuit elements.
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