Journal
OPTICS LETTERS
Volume 38, Issue 12, Pages 2104-2106Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.38.002104
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Funding
- National High Technology Research and Development Program of China [2011AA010205]
- National Natural Science Foundation of China [61171027]
- Australian Post-Doctoral Fellowships from the Australian Research Council (ARC) through Discovery Projects [DP1095151, DP110100262, DP1092717]
- ARC Discovery Project [DP120100200]
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Utilizing an elastic polymer, we design and experimentally demonstrate a four-fold symmetric flexible metamaterial operating at terahertz frequencies. The fabricated metamaterials exhibit good stretchability and recoverability. Two independent resonances can be observed when the structure is probed with linearly polarized terahertz waves in two orthogonal axes. Applying a stretching force along a main axis causes an observable frequency shift in the corresponding resonance, with minimal effect on the other. This study suggests a possible application of flexible metamaterials for dual-axis strain sensing. (c) 2013 Optical Society of America
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