Broadly tunable one-way terahertz plasmonic waveguide based on nonreciprocal surface magneto plasmons

被引：125

作者：

Hu, Bin ^{[1
]}

Wang, Qi Jie ^{[1
,2
]}

Zhang, Ying ^{[3
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Div Microelect, Singapore 639798, Singapore

[2] Nanyang Technol Univ, Div Phys & Appl Phys, Sch Phys & Math Sci, Singapore 637371, Singapore

[3] Singapore Inst Mfg Technol, Singapore 638075, Singapore

来源：

OPTICS LETTERS | 2012年 / 37卷 / 11期

关键词：

MAGNETOPLASMONS; SEMICONDUCTORS;

D O I：

10.1364/OL.37.001895

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

One-way-propagating broadly tunable terahertz plasmonic waveguide at a subwavelength scale is proposed based on a metal-dielectric-semiconductor structure. Unlike other one-way plasmonic devices that are based on interference effects of surface plasmons, the proposed one-way device is based on nonreciprocal surface magneto plasmons under an external magnetic field. Theoretical and simulation results demonstrate that the one-way-propagating frequency band can be broadly tuned by the external magnetic fields. The proposed concept can be used to realize various high performance tunable plasmonic devices such as isolators, switches and splitters for ultracompact integrated plasmonic circuits. (C) 2012 Optical Society of America

引用

页码：1895 / 1897

页数：3

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