Vesseur, E. J. R. and de Waele, R. and Lezec, H. J. and Atwater, H. A. and García de Abajo, F. J. and Polman, A. (2008) Surface plasmon polariton modes in a single-crystal Au nanoresonator fabricated using focused-ion-beam milling. Applied Physics Letters, 92 (8). Art. No. 083110. ISSN 0003-6951 http://resolver.caltech.edu/CaltechAUTHORS:VESapl08
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We use focused-ion-beam milling of a single-crystal Au surface to fabricate a 590-nm-long linear ridge that acts as a surface plasmon nanoresonator. Cathodoluminescence imaging spectroscopy is then used to excite and image surface plasmons on the ridge. Principal component analysis reveals distinct plasmonic modes, which proves confinement of surface plasmon oscillations to the ridge. Boundary-element-method calculations confirm that a linear ridge is able to support highly localized surface plasmon modes (mode diameter <100 nm). The results demonstrate that focused-ion-beam milling can be used in rapid prototyping of nanoscale single-crystal plasmonic components.
|Additional Information:||©2008 American Institute of Physics. Received 12 December 2007; accepted 4 February 2008; published 28 February 2008. This work is part of the research program “Microscopy and modification of nanostructures with focused electron and ion beams” MMN of FOM, which is financially supported by NWO. The MMN program is cofinanced by FEI Company. This work is also funded by NANONED, a nanotechnology program of the Dutch Ministry of Economic Affairs. Work at Caltech is financially supported by the AFOSR under MURI Grant No. FA9550-04-1-0434. F.J.G.A. acknowledges funding from the EU (STRP-016881-SPANS).|
|Subject Keywords:||cathodoluminescence, crystal resonators, focused ion beam technology, gold, localised modes, milling, polaritons, principal component analysis, surface plasmons|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||29 Feb 2008|
|Last Modified:||26 Dec 2012 09:51|
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