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Title

Ultrahigh nonlinear nanoshell plasmonic waveguide with total energy confinement

Author(s)

Hossain, Md M.;  Turner, Mark D.;  Gu, Min

Abstract

Dielectric nonlinear waveguides have reached their maximum potential in achieving high nonlinearity due to the limitation of mode confinement beyond the diffraction limit. We theoretically demonstrate that a plasmonic waveguide consisted of a nonlinear subwavelength core coated by a metallic nanoshell can achieve ultrahigh nonlinearity and complete mode confinement. Our results show that the subwavelength nanoshell plasmonic waveguide can possess an ultrahigh Kerr nonlinearity up to 4.1 × 104W−1m−1 with nearly 100% of the mode energy residing inside the waveguide at λ = 1.55 µm. The optical properties are explored with detailed numerical simulations and are explained in terms of their dispersive properties.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics

Source

Optics Express, Vol. 19, no. 24 (Nov 2011), pp. 23800-23808

Publication year

2011

FOR Code(s)

0205 Optical Physics;  0906 Electrical and Electronic Engineering;  1005 Communications Technologies

Keyword(s)

Energy confinement;  Nanoshell plasmonic waveguide;  Plasmonic waveguide;  Ultrahigh nonlinearity

Publisher

Optical Society of America

ISSN

1094-4087

Publisher URL

http://dx.doi.org/10.1364/oe.19.023800

Copyright

Copyright © 2011 OSA. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/oe.19.023800. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Research Projects

Australian Research Council Centre of Excellence for Ultrahigh Bandwidth Devices for Optical Systems, Australian Research Council grant number CE110001018

Full text

Peer reviewed