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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 36, Iss. 12 — Jun. 15, 2011
  • pp: 2278–2280

Plasmonic rod dimers as elementary planar chiral meta-atoms

Sergei V. Zhukovsky, Christian Kremers, and Dmitry N. Chigrin  »View Author Affiliations


Optics Letters, Vol. 36, Issue 12, pp. 2278-2280 (2011)
http://dx.doi.org/10.1364/OL.36.002278


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Abstract

We theoretically calculate the electromagnetic response of metallic rod dimers for the arbitrary planar arrangement of rods in the dimer. It is shown that dimers without an in-plane symmetry axis exhibit elliptical dichroism and act as “atoms” in planar chiral metamaterials. Because of a very simple geometry of the rod dimer, such planar metamaterials are much easier to fabricate than conventional split-ring or gammadion-type structures and lend themselves to a simple analytical treatment based on a coupled dipole model. Dependencies of the metamaterial’s directional asymmetry on the dimer’s geometry are established analytically and confirmed in numerical simulations.

© 2011 Optical Society of America

OCIS Codes
(050.1930) Diffraction and gratings : Dichroism
(160.1585) Materials : Chiral media
(160.3918) Materials : Metamaterials

ToC Category:
Materials

History
Original Manuscript: March 30, 2011
Manuscript Accepted: April 28, 2011
Published: June 13, 2011

Citation
Sergei V. Zhukovsky, Christian Kremers, and Dmitry N. Chigrin, "Plasmonic rod dimers as elementary planar chiral meta-atoms," Opt. Lett. 36, 2278-2280 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-12-2278


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