The University of Southampton
University of Southampton Institutional Repository

Anderson localization of light in disordered superlattices containing graphene layers

Anderson localization of light in disordered superlattices containing graphene layers
Anderson localization of light in disordered superlattices containing graphene layers
We perform a theoretical investigation of light propagation and Anderson localization in one-dimensional disordered superlattices composed of dielectric stacks with graphene sheets in between. Disorder is introduced either on graphene material parameters (e.g., Fermi energy) or on the widths of the dielectric stacks. We derive an analytic expression for the localization length (xi), and we compare it to numerical simulations using the transfer-matrix technique; a very good agreement is found. We demonstrate that the presence of graphene may strongly attenuate the anomalously delocalized Brewster modes, and it is at the origin of a periodic dependence of (xi) on frequency, in contrast to the usual asymptotic decay, (xi) is proportional to (omega)-2. By unveiling the effects of graphene on Anderson localization of light, we pave the way for new applications of graphene-based, disordered photonic devices in the THz spectral range.
1550-235X
1-10
Chaves, A.J.
e4b48496-0906-48a1-b539-d59eaf25f7ac
Peres, N.M.R.
1f788c76-f498-4c08-9ab0-13f07b5d2c81
Pinheiro, F.A.
2fb71c2c-1408-45d8-b166-41f0f336891d
Chaves, A.J.
e4b48496-0906-48a1-b539-d59eaf25f7ac
Peres, N.M.R.
1f788c76-f498-4c08-9ab0-13f07b5d2c81
Pinheiro, F.A.
2fb71c2c-1408-45d8-b166-41f0f336891d

Chaves, A.J., Peres, N.M.R. and Pinheiro, F.A. (2015) Anderson localization of light in disordered superlattices containing graphene layers. Physical Review B, 92 (19), 1-10. (doi:10.1103/PhysRevB.92.195425).

Record type: Article

Abstract

We perform a theoretical investigation of light propagation and Anderson localization in one-dimensional disordered superlattices composed of dielectric stacks with graphene sheets in between. Disorder is introduced either on graphene material parameters (e.g., Fermi energy) or on the widths of the dielectric stacks. We derive an analytic expression for the localization length (xi), and we compare it to numerical simulations using the transfer-matrix technique; a very good agreement is found. We demonstrate that the presence of graphene may strongly attenuate the anomalously delocalized Brewster modes, and it is at the origin of a periodic dependence of (xi) on frequency, in contrast to the usual asymptotic decay, (xi) is proportional to (omega)-2. By unveiling the effects of graphene on Anderson localization of light, we pave the way for new applications of graphene-based, disordered photonic devices in the THz spectral range.

Full text not available from this repository.

More information

Published date: 25 November 2015
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 400707
URI: https://eprints.soton.ac.uk/id/eprint/400707
ISSN: 1550-235X
PURE UUID: a99ea719-5554-4b69-a1ff-cd423abaa121

Catalogue record

Date deposited: 23 Sep 2016 13:50
Last modified: 14 Nov 2018 17:30

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×