Coupling between second-order mode in dielectric waveguide and fundamental mode in long range surface plasmon waveguide

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• 作者：Yunxiang Li ; Fang Liu ; ^{liu_fang@mail.tsinghua.edu.cn} ; Yidong Huang ; Boyu Fan ; Ruiyuan Wan
• 关键词：Surface plasmon ; Coupler ; Second-order mode
• 刊名：Optics Communications
• 出版年：2013
• 出版时间：15 February, 2013
• 年：2013
• 卷：289
• 期：Complete
• 页码：60-63
• 全文大小：639 K

文摘

The coupling between long range surface plasmon polariton (LRSPP) waveguide mode and dielectric waveguide second-order mode has been studied theoretically and experimentally. It is demonstrated that an almost pure TM-polarized second-order mode of dielectric waveguide is excited efficiently by the LRSPP fundamental mode. The proposed hybrid coupler inspires a new way for generating high-order waveguide modes, especially the high-order SPP waveguide modes, which is promising for mode division multiplexing, bio/chemical sensing, photonic circuits and other optical applications.