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Dual-band unidirectional forward scattering of Au–Si sliced nanorod in the visible region

Author(s)
Mu, Haiwei; Xu, Wenjing; Xu, Chonghong; Lv, Jingwei; Liu, Wei; Li, Xianli; Liu, Qiang; Liu, Chao; Sun, Tao; Chu, Paul K; ... Show more Show less
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.

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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
Abstract Strong resonant light scattering by an Au–Si sliced nanorod is investigated by the finite element method (FEM) based on COMSOL Multiphysics. Stemming from the interference between the electric, magnetic and toroidal multimodes in Au–Si sliced nanorod, the forward scattering is enhanced and backward scattering is attenuated substantially in visible region. Moreover, the high-efficiency unidirectional forward scattering is not limited to one specific wavelength but can fit in the multiple wavelengths. The structural parameters have an effect on the enhancement of different multimode resonances.
Date issued
2019-05-08
URI
https://hdl.handle.net/1721.1/131557
Department
Massachusetts Institute of Technology. Media Laboratory
Publisher
Springer Berlin Heidelberg
Citation
Applied Physics A. 2019 May 08;125(6):388
Version: Author's final manuscript

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