Reversibly Stretchable and Tunable Terahertz Metamaterials with Wrinkled Layouts

Authors

  • Seungwoo Lee,

    1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
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  • Seongnam Kim,

    1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
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  • Teun-Teun Kim,

    1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
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  • Yushin Kim,

    1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
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  • Muhan Choi,

    1. Creative Research Center for Graphene Electronics, Electronics and Telecommunications Research Institute (ETRI), Daejeon, 305-700, Korea
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  • Seung Hoon Lee,

    1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
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  • Ju-Young Kim,

    1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
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  • Bumki Min

    Corresponding author
    1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
    2. KI for Optical Science and Technology (KIOST), Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
    • Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea.
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Abstract

original image

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.

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