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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 21 — Oct. 17, 2007
  • pp: 13865–13876

Coupling of optical lumped nanocircuit elements and effects of substrates

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


Optics Express, Vol. 15, Issue 21, pp. 13865-13876 (2007)
http://dx.doi.org/10.1364/OE.15.013865


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Abstract

We present here an analytical quasi-static circuit model for the coupling among small nanoparticles excited by an optical electric field in the framework of the optical lumped nanocircuit theory [N. Engheta, A. Salandrino, and A. Alù, Phys. Rev. Lett. 95, 095504 (2005)]. We derive how coupling effects may affect the corresponding nanocircuit model by adding lumped controlled sources that depend on the optical voltages applied on the coupled particles as coupled lumped elements. With the same technique, we may model the presence of a substrate located underneath the nanocircuit elements, relating its presence to the coupling with a properly modeled image nanoparticle. These results are of importance in the understanding and the design of complex optical nanocircuits at infrared and optical frequencies.

© 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: September 17, 2007
Revised Manuscript: October 2, 2007
Manuscript Accepted: October 3, 2007
Published: October 5, 2007

Citation
Andrea Alú, Alessandro Salandrino, and Nader Engheta, "Coupling of optical lumped nanocircuit elements and effects of substrates," Opt. Express 15, 13865-13876 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-21-13865


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References

  1. N. Engheta, A. Salandrino, and A. Alù, "Circuit elements at optical frequencies: nano-inductors, nano-capacitors and nano-resistors," Phys. Rev. Lett. 95, 095504 (2005). [CrossRef] [PubMed]
  2. A. Alù and N. Engheta, "Optical nano-transmission lines: synthesis of planar left-handed metamaterials in the infrared and visible regimes," J. Opt. Soc. Am. B 23, 571-583 (2006). [CrossRef]
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