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Proceedings Paper

Form and identify plasmonic dimer antennas: emitting-polarization resolved scattering from classical to quantum regime
Author(s): Longkun Yang; Zhipeng Li
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Paper Abstract

Recently, plasmonic quantum effects have become appreciated for its significant influence on surface plasmons coupling as the gapwidths down to sub-nanometer scale. In this paper, we assemble gold dimer structures with the gapwidths ranging from tens of to sub-nanometer scale by capillary force during solvent evaporation. It is found that surface plasmons coupling has translated from classical to quantum regime as the gapwidths down to sub-nanometer range. Emitting-polarization resolved scattering on these gold dimers is also performed. Different from the incident-polarization dependence, these emitting-polarization spectra can unveil the intrinsic antenna interactions between unpolarized illumination and surface plasmons modes. Furthermore, the polarization-resolved scattering spectra show that the quantum effects can influence the polarizability of antenna emission. These findings would be beneficial for the development of quantum plasmonic antenna and sensor designs, etc.

Paper Details

Date Published: 3 November 2016
PDF: 8 pages
Proc. SPIE 10028, Plasmonics II, 100280A (3 November 2016); doi: 10.1117/12.2247589
Show Author Affiliations
Longkun Yang, Capital Normal Univ. (China)
Zhipeng Li, Capital Normal Univ. (China)


Published in SPIE Proceedings Vol. 10028:
Plasmonics II
Hongxing Xu; Satoshi Kawata; David J. Bergman; Xing Zhu, Editor(s)

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