Nonlinear response via intrinsic rotation in metamaterials

作者:Liu Mingkai*; Sun Yue; Powell David A; Shadrivov Ilya V; Lapine Mikhail; McPhedran Ross C; Kivshar Yuri S
来源:Physical Review B, 2013, 87(23): 235126.
DOI:10.1103/PhysRevB.87.235126

摘要

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.

  • 出版日期2013-6-20

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