Mechanically tunable terahertz metamaterials

被引：146

作者：

Li, Jining ^{[1
,2
]}

Shah, Charan M. ^{[3
]}

Withayachumnankul, Withawat ^{[1
]}

Ung, Benjamin S. -Y. ^{[1
]}

Mitchell, Arnan ^{[3
]}

Sriram, Sharath ^{[3
]}

Bhaskaran, Madhu ^{[3
]}

Chang, Shengjiang ^{[2
]}

Abbott, Derek ^{[1
]}

机构：

[1] Univ Adelaide, Sch Elect & Elect Engn, Adelaide, SA 5005, Australia

[2] Nankai Univ, Inst Modern Opt, Tianjin 300071, Peoples R China

[3] RMIT Univ, Funct Mat & Microsyst Res Grp, Melbourne, Vic 3001, Australia

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 12期

基金：

中国国家自然科学基金; 澳大利亚研究理事会; 国家高技术研究发展计划(863计划);

关键词：

SENSOR;

D O I：

10.1063/1.4773238

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Electromagnetic device design and flexible electronics fabrication are combined to demonstrate mechanically tunable metamaterials operating at terahertz frequencies. Each metamaterial comprises a planar array of resonators on a highly elastic polydimethylsiloxane substrate. The resonance of the metamaterials is controllable through substrate deformation. Applying a stretching force to the substrate changes the inter-cell capacitance and hence the resonance frequency of the resonators. In the experiment, greater than 8% of the tuning range is achieved with good repeatability over several stretching-relaxing cycles. This study promises applications in remote strain sensing and other controllable metamaterial-based devices. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4773238]

引用

页数：4

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