Surface plasmon interference formed by tightly focused higher polarization order axially symmetric polarized beams

被引：0
|
作者：
周哲海 [1 ,2 ]
谭峭峰 [1 ]
金国藩 [1 ]
机构：
[1] State Key Laboratory of Precision Measurement Technology and Instruments,Tsinghua University
[2] Department of Optical Information Science and Technology,Beijing Information Science and Technology University
来源：
ChineseOpticsLetters | 2010年 / 8卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Surface plasmon interference formed by tightly focused higher polarization order axially symmetric polarized beams; exp;
D O I：
暂无
中图分类号：
O436.3 [偏振与色散];
学科分类号：
摘要：
We numerically study the surface plasmon interference formed by tightly focused higher polarization order axially symmetric polarized beams (ASPBs) based on the vectorial diffraction theory. The definition of ASPBs is stated, and the optical setup for surface plasmon polariton (SPP) excitation and mathematical expressions for interfering SPP fields are proposed. The simulation results show that the interfering SPP fields present a multi-focal spot pattern. In addition, the number of spots is related to the polarization order of the incident beams P as 2×(P-1), indicating potential utilization in near-field multiple optical trapping and near-field imaging and sensing. The unique interfering phenomenon is also explained.
引用
收藏
页码：1178 / 1181
页数：4
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