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亚波长金属光栅的表面等离子体激元共振特性

刘镜 刘娟 王涌天 谢敬辉

刘镜, 刘娟, 王涌天, 谢敬辉. 亚波长金属光栅的表面等离子体激元共振特性[J]. 中国光学(中英文), 2011, 4(4): 363-368.
引用本文: 刘镜, 刘娟, 王涌天, 谢敬辉. 亚波长金属光栅的表面等离子体激元共振特性[J]. 中国光学(中英文), 2011, 4(4): 363-368.
LIU Jing, LIU Juan, WANG Yong-tian, XIE Jing-hui. Resonant properties of sub-wavelength metallic gratings[J]. Chinese Optics, 2011, 4(4): 363-368.
Citation: LIU Jing, LIU Juan, WANG Yong-tian, XIE Jing-hui. Resonant properties of sub-wavelength metallic gratings[J]. Chinese Optics, 2011, 4(4): 363-368.

亚波长金属光栅的表面等离子体激元共振特性

基金项目: 

国家973重点基础研究发展规划资助项目(No.2011CB301801)

详细信息
  • 中图分类号: O436.1

Resonant properties of sub-wavelength metallic gratings

  • 摘要: 亚波长金属光栅在共振波长处有光场局域增强、异常透射等现象,为深入认识其共振机制,本文研究了亚波长金属光栅的表面等离子体激元(SPP)共振特性。通过研究不同金属光栅的几何结构以及金属介电常数对SPP共振波长的影响,获得了3种共振波长的基本物理机制。采用周期边界元法进行数值模拟,在边界积分方程的基础上结合平面波展开方法来处理任意形状的周期性结构。模拟结果表明,3种共振波长可以分别由金属的材料、金属光栅周期和金属光栅厚度所调谐。该研究为微纳米光学器件的设计提供了依据。

     

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出版历程
  • 收稿日期:  2011-04-21
  • 修回日期:  2011-07-23
  • 刊出日期:  2011-08-25

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