Experimental realization of all-dielectric planar chiral metamaterials with large optical activity in direct transmission

被引：21
作者：
Meng, Xiangfeng [1 ,2 ]
Bai, Benfeng [1 ]
Karvinen, Petri [1 ]
Konishi, Kuniaki [3 ]
Turunen, Jari [1 ]
Svirko, Yuri [1 ]
Kuwata-Gonokami, Makoto [3 ]
机构：
[1] Univ Joensuu, Dept Math & Phys, FI-80101 Joensuu, Finland
[2] Tsinghua Univ, Dept Precis Instruments, Beijing 100084, Peoples R China
[3] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan
来源：
THIN SOLID FILMS | 2008年 / 516卷 / 23期
基金：
芬兰科学院; 日本学术振兴会;
关键词：
Metamaterial; Chirality; Optical activity; Electron beam lithography;
D O I：
10.1016/j.tsf.2008.06.081
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report on the experimental realization of all-dielectric planar chiral metamaterials (PCMs) with large optical activity (up to 26.5 degrees) in zeroth-order transmission under normal illumination. The design and fabrication processes are demonstrated in detail to show how to achieve the high-aspect-ratio, deep-groove, four-fold-rotational symmetric, subwavelength-period dielectric PCMs with prescribed polarization properties. The synchronization of numerical design and nanofabrication process appears to be an efficient, reliable and repeatable way to realize the PCM samples with high quality. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：8745 / 8748
页数：4
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