無機ナノ粒子を用いたナノプラズモニクス

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2012/08/01

タイトル(英語): Nanoplasmonics in Inorganic Nanoparticles

著者名: 寺西　利治（京都大学化学研究所／CREST-JST）

著者名(英語): Toshiharu Teranishi (Institute for Chemica Research, Kyoto University/CREST-JST)

キーワード: 無機ナノ粒子，構造制御，局在表面プラズモン共鳴，電場増強，プラズモン伝播　　inorganic nanoparticles，structural control，localized surface plasmon resonance，electric field enhancement，plasmon propagation

要約(英語): Localized surface plasmon polaritons, which are referred to simply as localized surface plasmons, are carrier oscillations in inorganic nanoparticles (NPs) that are excited by incident light waves. At the NP surface, the localized surface plasmons exhibit enhanced near-field amplitudes, which are highly localized at the NP surface and decay rapidly in the dielectric surroundings. A very important aspect of localized surface plasmons is the localization of an enhanced electromagnetic field around the NPs with very high spatial resolution (subwavelength). A precise control over the free electron density of indium tin oxide NPs enables us to tune the LSPR wavelength in the NIR regions. An electric field enhancement based on NIR surface plasmons was estimated to be 5.24-4.41. The surface plasmon coupling between highly symmetrical Au dimers was investigated in detail, and a dark plasmon coupling mode was found to be applied to the plasmon propagation without significant scattering loss.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.132 No.8 （2012） 特集：光・量子ビームによるナノダイナミクス

本誌掲載ページ: 1251-1254 p

原稿種別: 解説／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/132/8/132_1251/_article/-char/ja/