arXiv 1301.59602013-01-25physics.optics

Twists and turns for metamaterials

Mingkai Liu, Yue Sun, David A. Powell, Ilya V. Shadrivov, Mikhail Lapine, Ross C. McPhedran, Yuri S. Kivshar

备注：: Supplemental material is contained in a separate file

英文摘要：

We propose and verify experimentally a new concept for achieving strong nonlinear coupling between the electromagnetic and elastic properties in metamaterials. This coupling is provided through a novel degree of freedom in metamaterial design: 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 optimise 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.

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