Anisotropic surroundings effects on photo absorption of partially embedded Au nanospheroids in silica glass substrate

Meng, Xuan; Shibayama, Tamaki; Yu, Ruixuan; Ishioka, Junya; Watanabe, Seiichi

doi:10.1063/1.4908010


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Anisotropic surroundings effects on photo absorption of partially embedded Au nanospheroids in silica glass substrate

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Title:	Anisotropic surroundings effects on photo absorption of partially embedded Au nanospheroids in silica glass substrate
Authors:	Meng, Xuan Browse this author
	Shibayama, Tamaki Browse this author →KAKEN DB
	Yu, Ruixuan Browse this author
	Ishioka, Junya Browse this author
	Watanabe, Seiichi Browse this author →KAKEN DB
Issue Date:	Feb-2015
Publisher:	American Institute of Physics
Journal Title:	AIP Advances
Volume:	5
Issue:	2
Start Page:	27112
Publisher DOI:	10.1063/1.4908010
Abstract:	The influence of a directly adjacent or an anisotropic surrounding medium alters the plasmonic properties of a nanoparticle because it provides a mechanism for symmetry breaking of the scattering. Given the success of ion irradiation induced embedment of rigid metallic nanospheroids into amorphous substrate, it is possible to examine the effect of the silica glass substrate on the plasmonic properties of these embedded nanospheroids. In this work presented here, discrete dipole approximation (DDA) calculations for the Au nanospheroids' optical properties were performed based on 3-dimensional (3D) configuration extracted from planar SEM micrographs and cross-sectional TEM micrographs of the Au nanospheroids partially embedded in the silica glass, and the well-matched simulations with respect to the experimental measurements could demonstrate the dielectric constant at the near surface of silica glass decreased after Ar-ion irradiation.
Rights:	http://creativecommons.org/licenses/by/3.0/
Type:	article
URI:	http://hdl.handle.net/2115/58554
Appears in Collections:	エネルギー・マテリアル融合領域研究センター (Center for Advanced Research of Energy and Material) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 柴山環樹

OAI-PMH ( junii2 , jpcoar_1.0 )

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