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

被引：218

作者：

Kwon, Do-Hoon ^{[1
]}

Werner, Pingjuan L. ^{[1
]}

Werner, Douglas H. ^{[1
]}

机构：

[1] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 16期

关键词：

D O I：

10.1364/OE.16.011802

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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.

引用

页码：11802 / 11807

页数：6

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