Breather Induction by Modulational Instability in Binary Metamaterials |
| N. Lazaridesa, M.I. Molinab and G.P. Tsironisa
a Department of Physics, University of Crete, and FORTH, P.O. Box 2208, 71003 Heraklion, Greece b Departamento de Fisica, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile |
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| It is demonstrated numerically that nonlinear localized excitations in the form: of dissipative discrete breathers can be induced spontaneously through the mechanism of modulational instability in nonlinear magnetic metamaterials comprised of binary arrays of split ring resonators. Specifically, a variety of high amplitude dissipative breathers can be produced by frequency chirping of the driving field, which concentrate a large portion of the total energy of the metamaterial within only a few lattice sites. |
| DOI: 10.12693/APhysPolA.116.635 PACS numbers: 05.45.-a, 05.45.Xt, 63.20.Pw |