Surface plasmon polariton modes in a single-crystal Au nanoresonator fabricated using focused-ion-beam milling
Optics
2009-11-13 v1
Abstract
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.
Keywords
Cite
@article{arxiv.0801.1267,
title = {Surface plasmon polariton modes in a single-crystal Au nanoresonator fabricated using focused-ion-beam milling},
author = {E. J. R. Vesseur and R. de Waele and A. Polman and H. J. Lezec and H. A. Atwater and F. J. García de Abajo},
journal= {arXiv preprint arXiv:0801.1267},
year = {2009}
}
Comments
4 pages, 4 figures