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Femtosecond modulation of surface plasmon-polariton propagation

Femtosecond modulation of surface plasmon-polariton propagation
Femtosecond modulation of surface plasmon-polariton propagation
We report on a new way of controlling the propagation of surface plasmon polariton waves on a metal/dielectric interface using femtosecond optical pulses. We report for the first time that optical illumination of a plasmonic waveguide can affect the propagation of a plasmon wave in the waveguide and can be used to modulate plasmonic signals.
This has been demonstrated in pump-probe experiments wherein a probe plasmon wave was generated by grating mediated coupling of femtosecond pulses into an aluminium/silica waveguide, while control (pump) pulses were incident directly on the waveguide. Pump excitation at a wavelength of 780 nm with a fluence of the order 1 mJ/cm2 produces an ultrafast modulation of several percent in the detected probe signal. Fast (femtosecond) and slow (picosecond) response components have been detected along with a strong dependence of the modulation effect on pump polarization.
MacDonald, K.F.
76c84116-aad1-4973-b917-7ca63935dba5
Sámson, Z.L.
baef8935-31da-42a5-9772-53f28dfe5672
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Stockman, M.
5eab952f-afbf-41ca-8115-f17c1d50463f
MacDonald, K.F.
76c84116-aad1-4973-b917-7ca63935dba5
Sámson, Z.L.
baef8935-31da-42a5-9772-53f28dfe5672
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Stockman, M.
5eab952f-afbf-41ca-8115-f17c1d50463f

MacDonald, K.F., Sámson, Z.L., Zheludev, N.I. and Stockman, M. (2008) Femtosecond modulation of surface plasmon-polariton propagation. SPIE Optics & Photonics 2008: Metallic Nanostructures and their Optical Properties IV. 10 - 14 Aug 2008.

Record type: Conference or Workshop Item (Paper)

Abstract

We report on a new way of controlling the propagation of surface plasmon polariton waves on a metal/dielectric interface using femtosecond optical pulses. We report for the first time that optical illumination of a plasmonic waveguide can affect the propagation of a plasmon wave in the waveguide and can be used to modulate plasmonic signals.
This has been demonstrated in pump-probe experiments wherein a probe plasmon wave was generated by grating mediated coupling of femtosecond pulses into an aluminium/silica waveguide, while control (pump) pulses were incident directly on the waveguide. Pump excitation at a wavelength of 780 nm with a fluence of the order 1 mJ/cm2 produces an ultrafast modulation of several percent in the detected probe signal. Fast (femtosecond) and slow (picosecond) response components have been detected along with a strong dependence of the modulation effect on pump polarization.

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More information

Published date: August 2008
Venue - Dates: SPIE Optics & Photonics 2008: Metallic Nanostructures and their Optical Properties IV, 2008-08-10 - 2008-08-14

Identifiers

Local EPrints ID: 63389
URI: https://eprints.soton.ac.uk/id/eprint/63389
PURE UUID: 7d567b2c-816e-4995-afac-a67a514a45fd
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: 21 Oct 2008
Last modified: 14 Mar 2019 01:53

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Contributors

Author: K.F. MacDonald ORCID iD
Author: Z.L. Sámson
Author: N.I. Zheludev ORCID iD
Author: M. Stockman

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