Journal
APPLIED PHYSICS LETTERS
Volume 102, Issue 12, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4773238
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Funding
- National High Technology Research and Development Program of China [2011AA010205]
- National Natural Science Foundation of China [61171027]
- Australian Research Council (ARC) [DP1095151, DP110100262, DP1092717]
- ARC [DP120100200]
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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]
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