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Enhanced and polarization dependence of surface-enhanced Raman scattering in silver nanoparticle array-nanowire systems

机译：银纳米粒子阵列-纳米线系统中表面增强拉曼散射的增强和极化依赖性

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摘要

We report a surface-enhanced Raman scattering (SERS) platform composed of a single Ag nanowire (NW) and nanoparticle array (NW-array). There are three different fundamental combination patterns of NW-array systems. Optical excitation of sandwich nanostructure provides a stronger SERS hot array at the gap between the NW and array. We also have studied the polarization dependence of SERS in the coupled NW-array system for three kinds of pattern. We find SERS are strongly enhanced when the incident light is polarized across the junction between the particle of array and NW, the enhancement is amazingly insensitive to the detailed geometrical structure of coupled pattern.
机译：我们报告由单银纳米线（NW）和纳米粒子阵列（NW-array）组成的表面增强拉曼散射（SERS）平台。 NW阵列系统有三种不同的基本组合模式。三明治纳米结构的光激发在西北和阵列之间的间隙处提供了更强的SERS热阵列。我们还研究了三种图案在耦合NW阵列系统中SERS的偏振依赖性。我们发现，当入射光在阵列粒子和NW之间的交界处偏振时，SERS会大大增强，这种增强对耦合图案的详细几何结构不敏感。

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  • 来源
    《Applied Physics Letters》 |2013年第16期|163108.1-163108.3|共3页
  • 作者

    Z. G. Dai; X. H. Xiao; L. Liao; J. J. Ying; F. Mei; W. Wu; F. Ren; W. Q. Li; C. Z.Jiang;

  • 作者单位

    Department of Physics and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education,Wuhan University, Wuhan 430072, People's Republic of China;

    Department of Physics and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education,Wuhan University, Wuhan 430072, People's Republic of China ,Center for Electron Microscopy and Hubei Nuclear Solid Physics Key Laboratory, Wuhan University, Wuhan 430072, People's Republic of China;

    Department of Physics and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education,Wuhan University, Wuhan 430072, People's Republic of China;

    Department of Physics and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education,Wuhan University, Wuhan 430072, People's Republic of China;

    School of Electrical & Electronic Engineering, Hubei University of Technology, Wuhan 430068, People's Republic of China;

    Department of Physics and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education,Wuhan University, Wuhan 430072, People's Republic of China;

    Department of Physics and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education,Wuhan University, Wuhan 430072, People's Republic of China ,Center for Electron Microscopy and Hubei Nuclear Solid Physics Key Laboratory, Wuhan University, Wuhan 430072, People's Republic of China;

    Department of Physics and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education,Wuhan University, Wuhan 430072, People's Republic of China;

    Department of Physics and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education,Wuhan University, Wuhan 430072, People's Republic of China ,Center for Electron Microscopy and Hubei Nuclear Solid Physics Key Laboratory, Wuhan University, Wuhan 430072, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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