Analysis and design of concave lens with metallic slit array for terahertz wave band

被引：4
|
作者：
Suzuki, Takehito [1 ]
Yonamine, Hiroki [1 ]
Konno, Takuya [1 ]
Young, John C. [2 ]
Murai, Kotaro [3 ]
Miyamaru, Fumiaki [3 ]
Takano, Keisuke [4 ]
Kitahara, Hideaki [4 ]
Hangyo, Masanori [4 ]
机构：
[1] Ibaraki Univ, Dept Elect & Elect Engn, Hitachi, Ibaraki 3168511, Japan
[2] Univ Kentucky, Lexington, KY 40506 USA
[3] Shinshu Univ, Dept Phys, Matsumoto, Nagano 3908621, Japan
[4] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2014年 / 115卷 / 02期
基金：
日本科学技术振兴机构;
关键词：
METAMATERIAL;
D O I：
10.1007/s00339-013-8072-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents a three-dimensional concave lens constructed from a metallic slit array. The effective refractive index is estimated to be . The actual lens requires spacers in the slits. A lens using a low loss dielectric material for the terahertz frequency band is designed. The fast wave effect is enhanced in order to mitigate the slow wave effect of the dielectric material. Full wave analysis results are obtained by ANSYS HFSS and the focusing effect of the three-dimensional concave lens is confirmed in the terahertz frequency band.
引用
收藏
页码：495 / 500
页数：6
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