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Proceedings Paper

Localized field control at the nano-scale
Author(s): Hideki Fujiwara; Yuki Yasuda; Hiroaki Orita; Shutaro Ishida; Keiji Sasaki
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Paper Abstract

We investigate the wavelength dependence of localized plasmonic field distributions in a gold nanodimer structure under total internal reflection condition. Although a gold dimer structure is well known to induce strong localized mode at a nanogap, we find that the higher-order plasmonic modes are excited by the oblique light incidence and their interference effect enables us to observe the modification of localized filed distributions at the nano-scale even in a simple gold nanodimer structure depending on the detection wavelength. This change in the plasmonic field distribution would provide important knowledge for their potential applications such as plasmonic trapping, spectroscopy, and sensing.

Paper Details

Date Published: 18 April 2017
PDF: 3 pages
Proc. SPIE 10252, Optical Manipulation Conference, 1025216 (18 April 2017); doi: 10.1117/12.2269158
Show Author Affiliations
Hideki Fujiwara, Hokkaido Univ. (Japan)
Yuki Yasuda, Hokkaido Univ. (Japan)
Hiroaki Orita, Hokkaido Univ. (Japan)
Shutaro Ishida, Hokkaido Univ. (Japan)
Keiji Sasaki, Hokkaido Univ. (Japan)

Published in SPIE Proceedings Vol. 10252:
Optical Manipulation Conference
Takashige Omatsu, Editor(s)

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