Surface plasmon polariton coupling between a metal nanowire and a metal helix

详细信息    查看全文

• 作者：Yan Qin ; Wei Cao ; Zhongyue Zhang
• 关键词：Surface plasmon polariton ; Helix ; Nanowire ; Finite-difference time-domain method
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2013
• 出版时间：November, 2013
• 年：2013
• 卷：124
• 期：22
• 页码：5363-5365
• 全文大小：681 K

文摘

The transmittance and steady-state electrical field distribution of a silver nanowire-helix system are investigated using the finite-difference time-domain method. In the nanowire-helix system, surface plasmon polaritons are coupled into the helix or squeezed into the space between the nanowire and helix. The transmittance strongly depends on the topologic shapes of the helix, especially the pitch height. Thus, the nanowire-helix system enables the detection of the displacement associated with helical deformation.