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

• 来源期刊: 中国光学快报(英文版)
• 学科: 工学
• 关键词: 等离子体干扰 偏振光 轴对称 秩序 极化 表面 聚焦 最高人民检察院
• 年，卷（期）: 2010,（12）
• 所属期刊栏目: Optics at Surfaces
• 页码范围: 1178-1181
• 页数: 4页
• 分类号: TN97 O436.3
• 语种: 英文

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 ...