NDLI: Visualization of Near-Field Enhancements of Gold Triangles by Nonlinear Photopolymerization

Content Provider	Springer Nature Link
Author	Geldhauser, Tobias Ikegaya, Shintarou Kolloch, Andreas Murazawa, Naoki Ue, Kosei Boneberg, Johannes Leiderer, Paul Scheer, Elke Misawa, Hiroaki
Copyright Year	2011
Abstract	We report in this paper the near-field distribution in the case of gold triangle arrays by means of two-photon polymerization for a dipole and a quadrupole plasmon mode. In order to link the finite difference in the time domain (FDTD) simulations of the triangle array and the experimental results, extinction spectra for both cases in air and SU-8 environments are shown. In case of the 40-nm thick gold triangles with 85-nm side-length, we show that the calculated and experimentally obtained near-field for the excited dipole mode has the same distribution along the polarization of the exciting laser beam. In case of bigger triangles of 540-nm side-length a quadrupole mode is excited, which leads to a rotation of the near-field distribution by 90° referred to the polarization of the beam. This effect is also shown in the FDTD simulations.
Starting Page	207
Ending Page	212
Page Count	6
File Format	PDF
ISSN	15571955
Journal	Plasmonics
Volume Number	6
Issue Number	2
e-ISSN	15571963
Language	English
Publisher	Springer US
Publisher Date	2011-01-13
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Near-field FDTD Two-photon polymerization Colloidal lithography Plasmon resonance Nanotechnology Biotechnology Biochemistry Biophysics and Biological Physics
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Biochemistry Biophysics Biotechnology

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