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Nano-optomechanical nonlinear dielectric metamaterials

Karvounis, A., Ou, J.Y., Wu, W., MacDonald, K.F. and Zheludev, N.I. (2015). Nano-optomechanical nonlinear dielectric metamaterials. Applied Physics Letters, 107(19), doi: 10.1063/1.4935795

Abstract

By harnessing the resonant nature of localized electromagnetic modes in a nanostructured silicon membrane, an all-dielectric metamaterial can act as nonlinear medium at optical telecommunications wavelengths. We show that such metamaterials provide extremely large optomechanical nonlinearities, operating at intensities of only a few μW per unit cell and modulation frequencies as high as 152 MHz, thereby offering a path to fast, compact and energy
efficient all-optical metadevices.

Publication Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: School of Mathematics, Computer Science & Engineering > Engineering
School of Mathematics, Computer Science & Engineering > Engineering > Electrical & Electronic Engineering
URI: http://openaccess.city.ac.uk/id/eprint/14250
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