Surface plasmon driven lowering of the electron emission order in a carbon/gold bilayer film

We demonstrate the reduction of the nonlinear surface plasmon driven electron emission order from a bilayer of electron beam evaporated carbon (eC) and gold (Au). Higher confined electric fields, and the presence of sp2/sp3 clustering in the eC layer increase the electron emission at lower orders vi...

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Bibliographic Details
Published in:Applied physics letters 2016-11, Vol.109 (22)
Main Authors: Greig, S. R., Morteza-Najarian, A., McCreery, R. L., Elezzabi, A. Y.
Format: Article
Language:English
Subjects:
Applied physics
Carbon
Clustering
Electron beams
Electron emission
Electron sources
Gold
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Summary:We demonstrate the reduction of the nonlinear surface plasmon driven electron emission order from a bilayer of electron beam evaporated carbon (eC) and gold (Au). Higher confined electric fields, and the presence of sp2/sp3 clustering in the eC layer increase the electron emission at lower orders via field-driven energy gain. This bilayer provides a platform for ultrafast surface plasmon driven electron sources.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4969066