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Institute of Electrical and Electronics Engineers, IEEE Transactions on Plasma Science, 4(43), p. 951-956, 2015

DOI: 10.1109/tps.2014.2379259

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Efficiencies of Aloof-Scattered Electron Beam Excitation of Metal and Graphene Plasmons

Journal article published in 2015 by Kelvin J. A. Ooi ORCID, Wee Shing Koh, Hong Son Chu, Dawn T. H. Tan, Lay Kee Ang
This paper is available in a repository.
This paper is available in a repository.

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Abstract

We assessed the efficiencies of surface plasmon excitation by an aloof-scattered electron beam on metals and graphene. Graphene is shown to exhibit high energy transfer efficiencies at very low electron kinetic energy requirements. We show that the exceptional performance of graphene is due to its unique plasmon dispersion, low electronic density and thin-film structure. The potential applications of these aloof-scattered graphene plasmons are discussed in aspects of coherent radiation. ; Comment: 6 pages, 7 figures