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The plasmonic properties of argon cluster-bombarded InP surfaces

Lookup NU author(s): Dr Billy Murdoch, Professor Ian Fletcher, Professor Peter Cumpson



This is the final published version of an article that has been published in its final definitive form by American Institute of Physics Inc., 2017.

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© 2017 Author(s). Gas cluster ion beam sputtering has been used to study the self-organising behaviour of In metallic nanoparticles produced by preferential sputtering of phosphorus atoms in InP. Discrete plasmonic In nanoparticles are observed at the earliest stages of surface modification. The surfaces have been investigated in situ by reflection electron energy loss spectroscopy, Auger electron spectroscopy, and photoluminescence spectroscopy. By altering the excitation intensity, we observe alterations of the photoluminescence spectrum that are attributed to photoconductive-coupling between In nanoparticles. The devices presented are suitable for visible wavelength surface enhanced Raman spectroscopy and, potentially, offer a route to active all-optical switches.

Publication metadata

Author(s): Murdoch BJ, Barlow AJ, Fletcher IW, Cumpson PJ

Publication type: Article

Publication status: Published

Journal: Applied Physics Letters

Year: 2017

Volume: 111

Issue: 8

Online publication date: 23/08/2017

Acceptance date: 07/08/2017

Date deposited: 18/08/2017

ISSN (print): 0003-6951

Publisher: American Institute of Physics Inc.


DOI: 10.1063/1.4993535


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