Interference in edge-scattering from monocrystalline gold flakes
Optics
2018-11-06 v1
Abstract
We observe strongly dissimilar scattering from two types of edges in hexagonal quasi-monocrystalline gold flakes with thicknesses around 1 micron. We identify as the origin the interference between a direct, quasi-specular scattering and an indirect scattering process involving an intermediate surface-plasmon state. The dissimilarity between the two types of edges is a direct consequence of the three-fold symmetry around the [111]-axis and the intrinsic chirality of a face-centered cubic lattice. We propose that this effect can be used to estimate flake thickness, crystal morphology, and surface contamination.
Cite
@article{arxiv.1809.01542,
title = {Interference in edge-scattering from monocrystalline gold flakes},
author = {Sergejs Boroviks and Christian Wolff and Jes Linnet and Yuanqing Yang and Francesco Todisco and Alexander S. Roberts and Sergey I. Bozhevolnyi and Bert Hecht and N. Asger Mortensen},
journal= {arXiv preprint arXiv:1809.01542},
year = {2018}
}
Comments
18 pages, including 5 figures