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首页> 外文期刊>Optical engineering >Multiple excitations of a surface-plasmon-polariton wave guided by a columnar thin film deposited on a metal grating
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Multiple excitations of a surface-plasmon-polariton wave guided by a columnar thin film deposited on a metal grating

机译：由沉积在金属光栅上的柱状薄膜引导的表面等离子体激元波的多次激发

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摘要

Surface-plasmon-polariton (SPP) wave excitation in a composite structure obtained by depositing a columnar thin film (CTF) on a metal (silver) substrate decorated periodically by an array of rectangular grooves was analyzed using the rigorous coupled-wave approach. The SPP wave is excited as a Floquet harmonic of different orders by light incident from different directions, the incidence plane being the same as the grating plane. But, in some instances, the SPP wave appears to be excited as a doublet, i.e., a Floquet harmonic of the same order at two closely spaced angles of incidence, the excitation being less efficient for one angle of incidence than for the other. The characteristics of the SPP wave are affected by the vapor incidence angle chosen to deposit the CTF.
机译：使用严格的耦合波方法分析了复合结构中的表面等离子体激元（SPP）波激发，该复合结构是通过在由矩形凹槽阵列周期性装饰的金属（银）基板上沉积柱状薄膜（CTF）来获得的。从不同方向入射的光将SPP波激发为不同阶数的Floquet谐波，入射平面与光栅平面相同。但是，在某些情况下，SPP波似乎是作为双峰激发的，即在两个紧密间隔的入射角处具有相同阶次的Floquet谐波，而对于一个入射角，激发效率要低于另一个。 SPP波的特性受选择沉积CTF的蒸汽入射角的影响。

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  • 来源
    《Optical engineering》 |2014年第12期|127105.1-127105.6|共6页
  • 作者

    Francesco Chiadini; Vincenzo Fiumara; Antonio Scaglione; Akhlesh Lakhtakia;

  • 作者单位

    University of Salerno, Department of Industrial Engineering, Via Giovanni Paolo Ⅱ, 132, 84084 Fisciano (SA), Italy;

    University of Basilicata, School of Engineering, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy;

    University of Salerno, Department of Industrial Engineering, Via Giovanni Paolo Ⅱ, 132, 84084 Fisciano (SA), Italy;

    Pennsylvania State University, Department of Engineering Science and Mechanics, Nanoengineered Metamaterials Group, University Park, Pennsylvania 16802-6812, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    columnar thin film; metal grating; rigorous coupled-wave approach; surface-plasmon-polariton;

    机译：柱状薄膜金属格栅严格的耦合波方法;表面等离子极化;

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