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Type: Journal article
Title: Mechanically tunable terahertz metamaterials
Author: Li, J.
Shah, C.
Withayachumnankul, W.
Ung, B.
Mitchell, A.
Sriram, S.
Bhaskaran, M.
Chang, S.
Abbott, D.
Citation: Applied Physics Letters, 2013; 102(12):1-4
Publisher: Amer Inst Physics
Issue Date: 2013
ISSN: 0003-6951
Statement of
Jining Li, Charan M. Shah, Withawat Withayachumnankul, Benjamin S.-Y. Ung, Arnan Mitchell, Sharath Sriram, Madhu Bhaskaran, Shengjiang Chang, and Derek Abbott
Abstract: 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.
Rights: © 2013 American Institute of Physics
RMID: 0020126552
DOI: 10.1063/1.4773238
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Appears in Collections:Electrical and Electronic Engineering publications

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