High-transmission negative refraction of discrete rod resonators confined in a metal waveguide at visible wavelengths

被引：11
|
作者：
Yan, Changchun [1 ,2 ]
Wang, Qiong [1 ]
Zhuo, Shichuang [1 ]
Cui, Yiping [1 ]
机构：
[1] Southeast Univ, Sch Elect Sci & Engn, Adv Photon Ctr, Nanjing 210096, Peoples R China
[2] Xuzhou Normal Univ, Sch Phys & Elect Engn, Xuzhou 221116, Peoples R China
来源：
OPTICS EXPRESS | 2008年 / 16卷 / 18期
关键词：
D O I：
10.1364/OE.16.013818
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A type of metamaterial composed of a metal waveguide with discrete rod resonators, is investigated in this work for the first time. The simulation results show that the maximum of FOM =-Re(n)/Im(n) reaches 1.12 at the 543.5 nm. For another set of dimensions of the unit cell, the maximum of FOM reaches 1.41 at the wavelength of 721 nm. Our additional large numbers of simulation results show that different negative-index bands in visible wavelengths can be obtained by tuning the geometric dimensions of the unit cell. (c) 2008 Optical Society of America.
引用
收藏
页码：13818 / 13823
页数：6
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