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
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
18 October 2004
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), .
(doi:10.1063/1.1808240).
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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Published date: 18 October 2004
Keywords:
Surface plasmon polaritons, Structural transitions, Optical properties
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Local EPrints ID: 28647
URI: http://eprints.soton.ac.uk/id/eprint/28647
ISSN: 0003-6951
PURE UUID: 0bf109db-6a35-4847-92ae-85daea743386
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Date deposited: 03 May 2006
Last modified: 16 Mar 2024 03:10
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Author:
A. V. Krasavin
Author:
A. V. Zayats
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