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Compensation of plasmonic losses in metamaterial using nonlinear interactions

Compensation of plasmonic losses in metamaterial using nonlinear interactions
Compensation of plasmonic losses in metamaterial using nonlinear interactions
We demonstrate for the first time that near plasmonic resonances the local field enhancement factor, which controls the efficiency of nonlinear interactions, can have a negative value, thus offering a new way of compensating losses in metamaterials. Using a mode-locked femtosecond laser of only a few mW of average power and a metamaterial structure of asymmetrically split ring apertures in a 50 nm thick gold film we observed a resonant conversion of nonlinear absorption into nonlinear bleaching leading to a 12% increase of the metamaterial’s transmission.
Ren, M.
85c262e2-b760-4b14-bb8e-4747ce7a9d6d
Plum, E.
50761a26-2982-40df-9153-7aecc4226eb5
Xu, J.
e3837799-f55a-4049-a5d5-75b4ed981dd5
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Ren, M.
85c262e2-b760-4b14-bb8e-4747ce7a9d6d
Plum, E.
50761a26-2982-40df-9153-7aecc4226eb5
Xu, J.
e3837799-f55a-4049-a5d5-75b4ed981dd5
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Ren, M., Plum, E., Xu, J. and Zheludev, N.I. (2012) Compensation of plasmonic losses in metamaterial using nonlinear interactions. SPIE Photonics Europe 2012, Belgium. 16 - 19 Apr 2012.

Record type: Conference or Workshop Item (Paper)

Abstract

We demonstrate for the first time that near plasmonic resonances the local field enhancement factor, which controls the efficiency of nonlinear interactions, can have a negative value, thus offering a new way of compensating losses in metamaterials. Using a mode-locked femtosecond laser of only a few mW of average power and a metamaterial structure of asymmetrically split ring apertures in a 50 nm thick gold film we observed a resonant conversion of nonlinear absorption into nonlinear bleaching leading to a 12% increase of the metamaterial’s transmission.

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More information

Published date: 2012
Venue - Dates: SPIE Photonics Europe 2012, Belgium, 2012-04-16 - 2012-04-19
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 365095
URI: https://eprints.soton.ac.uk/id/eprint/365095
PURE UUID: 4f4d5297-76d1-434f-8d78-6827b6136eaa
ORCID for E. Plum: ORCID iD orcid.org/0000-0002-1552-1840
ORCID for N.I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 22 May 2014 10:30
Last modified: 01 Aug 2019 00:38

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Contributors

Author: M. Ren
Author: E. Plum ORCID iD
Author: J. Xu
Author: N.I. Zheludev ORCID iD

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