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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 2 — Jan. 18, 2010
  • pp: 1059–1069

Gold helix photonic metamaterials: A numerical parameter study

Justyna K. Gansel, Martin Wegener, Sven Burger, and Stefan Linden  »View Author Affiliations

Optics Express, Vol. 18, Issue 2, pp. 1059-1069 (2010)

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We have recently shown that metamaterials composed of three-dimensional gold helices periodically arranged on a square lattice can be used as compact “thin-film” circular polarizers with one octave bandwidth. The physics of the motif of these artificial crystals is closely related to that of microwave sub-wavelength helical antennas in end-fire geometry. Here, we systematically study the dependence of the metamaterial’s chiral optical properties on helix pitch, helix radius, two-dimensional lattice constant, wire radius, number of helix pitches, and angle of incidence. Our numerical calculations show that the optical properties are governed by resonances of the individual helices, yet modified by interaction effects. Furthermore, our study shows possibilities and limitations regarding performance optimization.

© 2010 OSA

OCIS Codes
(260.5430) Physical optics : Polarization
(160.1585) Materials : Chiral media
(160.3918) Materials : Metamaterials

ToC Category:

Original Manuscript: November 13, 2009
Revised Manuscript: December 22, 2009
Manuscript Accepted: December 28, 2009
Published: January 7, 2010

Justyna K. Gansel, Martin Wegener, Sven Burger, and Stefan Linden, "Gold helix photonic metamaterials: A numerical parameter study," Opt. Express 18, 1059-1069 (2010)

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