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Novel nonlinear chiral metamaterials

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7 Author(s)
Slobozhanyuk, A.P. ; Nat. Res. Univ. of Inf. Technol., Mech. & Opt. (NRU ITMO), St. Petersburg, Russia ; Belov, P.A. ; Lapine, M. ; McPhedran, R.C.
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We report on a novel metamaterial design based on multi-turn spiral resonators which strongly enhance nonlinear coupling between electromagnetic and mechanical response. The robust fabrication procedures allowed to produce a large number of resonators, suitable for assembling large metamaterials arrays. We experimentally demonstrate a remarkable self-tuning of the electromagnetic resonance, achieved via power-dependent mechanical reconfiguration, dominating over thermal effects. The corresponding compression of the spirals provides a nonlinear chiral response.

Published in:

Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE

Date of Conference:

7-13 July 2013