Journal
OPTICS EXPRESS
Volume 16, Issue 16, Pages 11802-11807Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.16.011802
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Planar chiral metamaterials comprising double-layer dielectric-metal-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. (c) 2008 Optical Society of America.
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