Blue shift of plasmonic resonance induced by nanometer scale anisotropy of chemically synthesized gold nanospheres

Ryoko Watanabe-Tamaki; Atsushi Ishikawa; Takuo Tanaka

doi:10.1063/1.4790291

Blue shift of plasmonic resonance induced by nanometer scale anisotropy of chemically synthesized gold nanospheres

Ryoko Watanabe-Tamaki, Atsushi Ishikawa, Takuo Tanaka

Graduate School of Natural Science and Technology

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Anisotropic plasmonic responses on oblate spheroidal shape were investigated using chemically synthesized gold nanospheres. By employing the polarized transmission spectroscopy with oblique incidence, we observe 12-nm blue shift of the plasmonic resonant wavelength for gold nanospheres. The gold nanospheres with 3-nm deformation exhibited anisotropy by adsorbing on a substrate surface, resulting in the blue shift of plasmon resonant wavelength. The good agreement in measured and simulated transmission spectra leads to a precise design of gold nanospheres for plasmonic applications.

Original language	English
Article number	043110
Journal	Applied Physics Letters
Volume	102
Issue number	4
DOIs	https://doi.org/10.1063/1.4790291
Publication status	Published - Jan 28 2013

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "Anisotropic plasmonic responses on oblate spheroidal shape were investigated using chemically synthesized gold nanospheres. By employing the polarized transmission spectroscopy with oblique incidence, we observe 12-nm blue shift of the plasmonic resonant wavelength for gold nanospheres. The gold nanospheres with 3-nm deformation exhibited anisotropy by adsorbing on a substrate surface, resulting in the blue shift of plasmon resonant wavelength. The good agreement in measured and simulated transmission spectra leads to a precise design of gold nanospheres for plasmonic applications.",

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AB - Anisotropic plasmonic responses on oblate spheroidal shape were investigated using chemically synthesized gold nanospheres. By employing the polarized transmission spectroscopy with oblique incidence, we observe 12-nm blue shift of the plasmonic resonant wavelength for gold nanospheres. The gold nanospheres with 3-nm deformation exhibited anisotropy by adsorbing on a substrate surface, resulting in the blue shift of plasmon resonant wavelength. The good agreement in measured and simulated transmission spectra leads to a precise design of gold nanospheres for plasmonic applications.

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