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Proceedings Paper

Tunable plasmonic characteristics at asymmetric double metal caps on a dielectric nanosphere
Author(s): Hansik Yun; Hyeonsoo Park; Byoungho Lee
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Paper Abstract

The plasmonics is expected to be a potential candidate of future sensing technologies, such as single-molecular detections and surface-enhanced Raman scattering, because of concentrated and enhanced electric fields at a sharp edge of a metallic nanostructure. In particular, breaking symmetry of a plasmonic structure results in anisotropic angular optical responses and allows a broad tunability of surface plasmons. In this study, we suggest a structure of asymmetric double metal caps on a dielectric nanosphere in order to increase the asymmetry of component structures and to improve the tunability of a plasmonic sensor.

Paper Details

Date Published: 1 July 2015
PDF: 4 pages
Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 965532 (1 July 2015); doi: 10.1117/12.2184383
Show Author Affiliations
Hansik Yun, Seoul National Univ. (Korea, Republic of)
Hyeonsoo Park, Seoul National Univ. (Korea, Republic of)
Byoungho Lee, Seoul National Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 9655:
Fifth Asia-Pacific Optical Sensors Conference
Byoungho Lee; Sang-Bae Lee; Yunjiang Rao, Editor(s)

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