Polarization-independent broadband terahertz chiral metamaterials on flexible substrate

被引：11

作者：

Li, Y. ^{[1
]}

Huang, Q. ^{[2
]}

Wang, D. C. ^{[2
]}

Li, X. ^{[1
]}

Hong, M. H. ^{[2
]}

Luo, X. G. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, Chengdu 610209, Peoples R China

[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2014年 / 115卷 / 01期

关键词：

CHEMICAL RECOGNITION; TECHNOLOGY; DESIGN; SPECTROSCOPY; FABRICATION; FILTER; WAVES; LASER;

D O I：

10.1007/s00339-013-8002-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A THz band-reject filter is designed based on chiral four-fold rotational symmetry metamaterial. This filter was fabricated by laser micro-lens array lithography and characterized by terahertz time-domain spectroscopy. The resonant frequencies at different twist angles are almost the same, which demonstrates the polarization independence of the structure. The electric field distribution is simulated to explain the physics mechanism behind the polarization independence. By stacking multiple metamaterial layers together, a THz broadband reject filter at a bandwidth of 0.461 THz is experimentally achieved.

引用

页码：57 / 62

页数：6

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