Interference in edge-scattering from monocrystalline gold flakes

Boroviks, Sergejs, Wolff, Christian, Linnet, Jes, Yang, Yuanqing, Todisco, F., Roberts, Alexander S., Bozhevolnyi, Sergey I., Hecht, Bert and Mortensen, N. A. (2018). Interference in edge-scattering from monocrystalline gold flakes. Working Paper. UNSPECIFIED.

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.

Divisions: Engineering & Applied Sciences > Systems analytics research institute (SARI)
Engineering & Applied Sciences > Institute of Photonics
Additional Information: © 2018 The Authors. Funding: MSCA-COFUND-MULTIPLY - Grant number 713694 - H2020.
Full Text Link: https://arxiv.org/abs/1809.01542
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Published Date: 2018-09-05
Authors: Boroviks, Sergejs
Wolff, Christian
Linnet, Jes
Yang, Yuanqing
Todisco, F.
Roberts, Alexander S.
Bozhevolnyi, Sergey I.
Hecht, Bert
Mortensen, N. A.

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