Nonlinear response via intrinsic rotation in metamaterials

Publication Type:
Journal Article
Citation:
Physical Review B - Condensed Matter and Materials Physics, 2013, 87 (23)
Issue Date:
2013-06-20
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We propose and experimentally verify a way to achieve strong nonlinear coupling between the electromagnetic and elastic properties in metamaterials. This coupling is provided through a novel degree of freedom in metamaterial design: the internal rotation within structural elements. Our meta-atoms have high sensitivity to electromagnetic wave power, and the elastic and electromagnetic properties can be independently designed to optimize the response. We demonstrate a rich range of nonlinear phenomena including self-tuning and bistability, and provide a comprehensive experimental demonstration of the predicted effects. © 2013 American Physical Society.
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