顺势排列
表面等离子体子
材料科学
液晶
光学
棱镜
等离子体子
表面等离子共振
激发
激发态
局域表面等离子体子
光电子学
纳米技术
物理
原子物理学
量子力学
纳米颗粒
作者
Lizhen Ruan,Fuzi Yang,John W. Goodby
摘要
Surface plasmons on silver in the visible domain are excited using a several micron thick layer of liquid crystal as the optical tunnel barrier. This thickness is possible when the orientation of the director in the liquid crystal varies from homeotropic at the entrance surface (against the coupling prism) to homogeneous on the thick silver layer at the other side of the cell, with the director tilting in a plane normal to the plane of incidence. This geometry also allows the excitation of guided modes, which mixes with the surface plasmon resonance. Both types of mode are then explored as a function of applied voltage.
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