Anomalous extinction independence on the polarization of one dimension metallic ellipsoid nanoparticle chains

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• 作者：Xin Feng^a ; Zhiliang Dong^a ; ^{18831128686@126.com" class="auth_mail" title="E-mail the corresponding author} ; Hongjing Ma^b (Lecturer) ; Qinjun Du^a
• 关键词：Localized surface plasmons ; Metallic nanoparticle
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：127
• 期：21
• 页码：10266-10270
• 全文大小：884 K

文摘

A series of silver ellipsoid nanoparticles are arranged in a line to investigate the anomalous extinction with the incident polarizations both perpendicular and parallel to the chains. Due to the partial interaction among the units, the anomalous extinction −like effect appears for the polarization along the chain with the long axis of the ellipsoid perpendicular to the chain. If the polarization changes from 0 to 2π, the extinction cross sections changed with the polarization angle are different in the structure of the long axis of the ellipsoid perpendicular to the chain with a certain lattice constant, which the phase difference is π/2. Our structure has potential applications in the optical key distributions.