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Dynamic optical activity and self-oscillation in torsional metamaterials

Liu, Mingkai; Powell, David; Shadrivov, Ilya; Lapine, Mikhail; Kivshar, Yuri


We study the nonlinear dynamic properties of coupled torsional meta-molecules. We find that this structure may exhibit self-oscillation behaviour, and we analyse two different mechanisms leading to this effect. Contrary to many previously studied optomechanical systems, self-oscillations of torsional meta-molecules can be extremely robust against mechanical damping and they can be manipulated by the polarisation of electromagnetic waves. We also study the dynamic nonlinear optical activity...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Conference paper
Source: Metamaterials 2013 Bordeaux Scientific Program and Proceedings
DOI: 10.1109/MetaMaterials.2013.6809052


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