Feasibility of graphene CRLH metamaterial waveguides and leaky wave antennas

被引：16
|
作者：
Chu, Derrick A. [1 ]
Hon, Philip W. C. [1 ,2 ]
Itoh, Tatsuo [1 ]
Williams, Benjamin S. [1 ,3 ]
机构：
[1] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA
[2] Northrop Grumman Aerosp Syst, NG NEXT Nanophoton & Plasmon Lab, Redondo Beach, CA 90278 USA
[3] Univ Calif Los Angeles, CNSI, Los Angeles, CA 90095 USA
来源：
JOURNAL OF APPLIED PHYSICS | 2016年 / 120卷 / 01期
基金：
美国国家科学基金会;
关键词：
PLASMONICS; GATE;
D O I：
10.1063/1.4955138
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The feasibility of composite right/left-handed (CRLH) metamaterial waveguides based upon graphene plasmons is demonstrated via numerical simulation. Designs are presented that operate in the terahertz frequency range along with their various dimensions. Dispersion relations, radiative and free-carrier losses, and free-carrier based tunability are characterized. Finally, the radiative characteristics are evaluated, along with its feasibility for use as a leaky-wave antenna. While CRLH waveguides are feasible in the terahertz range, their ultimate utility will require precise nanofabrication, and excellent quality graphene to mitigate free-carrier losses. Published by AIP Publishing.
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收藏
页数：10
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