Optical planar chiral metamaterial designs for strong circular dichroism and polarization rotation

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Abstract

Planar chiral metamaterials comprising double-layer dielectricmetal- dielectric resonant structures in the shape of a gammadion are presented in the near-infrared regime. The unit cell of the doubly-periodic metamaterial design is optimized using the genetic algorithm for maximum circular dichroism and for maximum optical activity. A circular dichroism value in excess of 50% is predicted for the optimized design. Maximum polarization rotatory powers in terms of the minimum allowed transmittances are also obtained and presented.

Original languageEnglish (US)
Pages (from-to)11802-11807
Number of pages6
JournalOptics Express
Volume16
Issue number16
DOIs
StatePublished - Aug 4 2008

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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