Broad Band Two-Dimensional Manipulation of Surface Plasmons

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• 作者：Zhaowei Liu ; Yuan Wang ; Jie Yao ; Hyesog Lee ; Werayut Srituravanich ; Xiang Zhang
• 刊名：Nano Letters
• 出版年：2009
• 出版时间：January 14, 2009
• 年：2009
• 卷：9
• 期：1
• 页码：462-466
• 全文大小：264K
• 年卷期：v.9,no.1(January 14, 2009)
• ISSN：1530-6992

文摘

A plasmonic interference pattern can be formed when multiple surface plasmon waves overlap coherently. Utilizing a sharp edge coupling mechanism, we experimentally demonstrate plasmonic interference patterns that can be designed at will by shaping the edges in a metallic film. The patterns can also be dynamically tailored by adjusting the wavelength, the polarization, and the incident angle of the excitation light beam. Possessing the subdiffraction limited feature resolution, this dynamical manipulation method of surface plasmon patterns will have profound potentials in nanolithography, particle manipulation, and other related fields.