Abstract-Metamaterials: Reversibly Stretchable and Tunable Terahertz Metamaterials with Wrinkled Layouts

Seungwoo Lee,  Seongnam Kim,  Teun-Teun Kim,  Yushin Kim,  Muhan Choi,  Seung Hoon Lee,  Ju-Young Kim,  Bumki Min 

http://onlinelibrary.wiley.com/doi/10.1002/adma.201290159/abstract

When metamaterials are arranged in a stretchable platform, their practical applications (e.g., reconfigurable optoelectronic devices and biological sensors) can be greatly extended. B. Min and co-workers take inspiration from the wrinkled structures of various bio-organisms to develop a generic strategy for reversibly stretchable metamaterials. The structural integrities of the wrinkled THz metamaterials described, remain intact after repeated stretching/relaxing, and the wrinkled metamaterial makes a mechanically reversible transition between artificial homogeneous and inhomogeneous broadenings

Abstract-Reversibly Stretchable and Tunable Terahertz Metamaterials with Wrinkled Layouts

http://onlinelibrary.wiley.com/doi/10.1002/adma.201200419/abstract
The use of wrinkling provides a generic route to stretchable metamaterials, with unprecedented terahertz tunability. The wrinkled metamaterial can be stretched reversibly up to 52.5%; the structural integrity can be maintained during at least 100 stretching/relaxing cycles. Importantly, the wrinkling of meta-atoms offers a deterministic way to achieve controlled broadening of electrical resonance.