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High-contrast modulation of light with light by control of surface plasmon polariton wave coupling

High-contrast modulation of light with light by control of surface plasmon polariton wave coupling
High-contrast modulation of light with light by control of surface plasmon polariton wave coupling
We have demonstrated a mechanism for modulating light with light by controlling the efficiency with which light is coupled into a plasmon polariton wave. An optical fluence of 15 mJ/cm² in the control channel is sufficient to achieve nearly a ten-fold intensity modulation of the signal beam reflected from a Glass /MgF2 /Ga structure. The mechanism depends on a nanoscale light-induced structural transformation in the gallium layer and has transient switching times of the order of a few tens of nanoseconds. It offers high modulation contrast for signals in the visible and near infrared spectral ranges.
Surface plasmon polaritons, Structural transitions, Optical properties
0003-6951
3369-3371
Krasavin, A. V.
b57d9b13-c66f-449b-b74c-d068a821c52c
MacDonald, K. F.
76c84116-aad1-4973-b917-7ca63935dba5
Zheludev, N. I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Zayats, A. V.
d3e3f5f0-6e43-430b-a007-41f4b947a0d1
Krasavin, A. V.
b57d9b13-c66f-449b-b74c-d068a821c52c
MacDonald, K. F.
76c84116-aad1-4973-b917-7ca63935dba5
Zheludev, N. I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Zayats, A. V.
d3e3f5f0-6e43-430b-a007-41f4b947a0d1

Krasavin, A. V., MacDonald, K. F., Zheludev, N. I. and Zayats, A. V. (2004) High-contrast modulation of light with light by control of surface plasmon polariton wave coupling. Applied Physics Letters, 85 (16), 3369-3371. (doi:10.1063/1.1808240).

Record type: Article

Abstract

We have demonstrated a mechanism for modulating light with light by controlling the efficiency with which light is coupled into a plasmon polariton wave. An optical fluence of 15 mJ/cm² in the control channel is sufficient to achieve nearly a ten-fold intensity modulation of the signal beam reflected from a Glass /MgF2 /Ga structure. The mechanism depends on a nanoscale light-induced structural transformation in the gallium layer and has transient switching times of the order of a few tens of nanoseconds. It offers high modulation contrast for signals in the visible and near infrared spectral ranges.

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More information

Published date: 18 October 2004
Keywords: Surface plasmon polaritons, Structural transitions, Optical properties

Identifiers

Local EPrints ID: 28647
URI: https://eprints.soton.ac.uk/id/eprint/28647
ISSN: 0003-6951
PURE UUID: 0bf109db-6a35-4847-92ae-85daea743386
ORCID for K. F. MacDonald: ORCID iD orcid.org/0000-0002-3877-2976
ORCID for N. I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 03 May 2006
Last modified: 03 Dec 2019 02:03

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Contributors

Author: A. V. Krasavin
Author: K. F. MacDonald ORCID iD
Author: N. I. Zheludev ORCID iD
Author: A. V. Zayats

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