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Investigations on Plasmonic Modes of Noble Metal Nano-Disks Using High-Resolution Cathodoluminescence Imaging Spectroscopy

Published online by Cambridge University Press:  11 March 2011

Anil Kumar ,
Kin Hung Fung  and
Nicholas X. Fang
Anil Kumar
Affiliation:
Center for Nanoscale Chemical-Electrical-Mechanical Manufacturing Systems at University of Illinois, Urbana-Champaign, IL 61801 USA Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, IL 61801 USA
Kin Hung Fung
Affiliation:
Center for Nanoscale Chemical-Electrical-Mechanical Manufacturing Systems at University of Illinois, Urbana-Champaign, IL 61801 USA Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, IL 61801 USA
Nicholas X. Fang
Affiliation:
Center for Nanoscale Chemical-Electrical-Mechanical Manufacturing Systems at University of Illinois, Urbana-Champaign, IL 61801 USA Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, IL 61801 USA Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
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Abstract

In this work, we report investigations on plasmonic nano-disks using cathodoluminescence (CL) imaging and spectroscopy. 50 nm thick gold disks fabricated using electron beam lithography were studied and several modes were identified. Detailed analysis of the modes using monochromatic imaging and CL spectra showed strong size dependence. Our investigations on these plasmonic nano-disks allow understanding of light-matter interaction at nanoscale, with several potential applications including next generation plasmonic nano-lasers.

Keywords

electron irradiationluminescenceoptical properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1294: Symposium M – Resonant Optical Antennas—Sensing and Shaping Materials , 2011 , mrsf10-1294-m04-04
Copyright
Copyright © Materials Research Society 2011

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References

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