Complicated Wavefront Shaping of Surface Plasmon Polaritons on Metal Surface by Holographic Groove Patterns

被引：8
作者：
Chen, Yue-Gang [1 ,2 ]
Wang, Yue [1 ]
Li, Zhi-Yuan [2 ]
机构：
[1] Guizhou Univ, Dept Phys, Guiyang 550025, Peoples R China
[2] Chinese Acad Sci, Inst Phys, Lab Opt Phys, Beijing 100190, Peoples R China
来源：
PLASMONICS | 2014年 / 9卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Surface plasmons; Subwavelength structures; Holography; LIGHT; SLOT;
D O I：
10.1007/s11468-014-9714-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Surface plasmon polaritons (SPPs) manipulation on metal surfaces is important for constructing ultracompact integrated micro/nano-optical devices and systems. We employ the methodology of surface electromagnetic wave holography (SWH) to design holographic groove patterns for controlling SPPs with complicated wavefronts traveling on metal surface. SPPs are scattered by these deli groove patterns and interfere with each other to form desired SPP wavefronts. Several devices are demonstrated to control the intensities and phases of SPPs, such as focusing a plane SPP or diverging SPPs to two points with different phases, and focusing SPPs with complicated beam profile to a point. The finite-difference time-domain simulations show that in all cases, the predesignated functionalities are fully achieved by the designed plasmonic holographic structures. The results strongly support the power of SWH for shaping the complicated wavefront of in-plane transporting SPPs.
引用
收藏
页码：1057 / 1062
页数：6
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