Three-Dimensional Complete Vectorial Electromagnetic Analysis for Super-Oscillatory Lens

doi:10.7652/xjtuxb201708001

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Three-Dimensional Complete Vectorial Electromagnetic Analysis for Super-Oscillatory Lens

更新时间：2025-07-09

- Three-Dimensional Complete Vectorial Electromagnetic Analysis for Super-Oscillatory Lens
- Vol. 51, Issue 8, Pages: 1-5(2017)
- 作者机构：
  
  西安交通大学机械制造系统工程国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201708001
  CLC： O436.1;O441.4
- Online First：10 August 2017，
  
  Published：2017
- 稿件说明：
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Three-Dimensional Complete Vectorial Electromagnetic Analysis for Super-Oscillatory Lens[J]. 2017, 51(8): 1-5.
DOI：

Three-Dimensional Complete Vectorial Electromagnetic Analysis for Super-Oscillatory Lens[J]. 2017, 51(8): 1-5. DOI： 10.7652/xjtuxb201708001.

摘要

为了揭示超振荡透镜(SOL)亚波长聚焦本质和高分辨率成像机理

阐述了超振荡透镜的三维全矢量电磁分析方法

包括矢量电磁聚焦和矢量电磁成像两个连续物理过程。采用矢量角谱理论

计算预测超振荡透镜后多衍射光束精细干涉形成的矢量光场分布

利用等价磁偶极子矢量成像理论

定量计算探测面内像场分布。研究结果表明:三维时域有限差分法建模的严格求解结果与矢量角谱结果基本吻合; 高倍、大数值孔径显微成像系统具有选择性偏振滤波成像机理

特别是可对纵向偏振分量进行抑制。该研究为超振荡透镜应用于纳米光刻、超分辨显微技术、粒子操控等领域提供了理论基础。

Abstract

A three-dimensional complete vectorial electromagnetic analysis is conducted to demonstrate the subwavelength focusing and high-resolution imaging mechanisms of super-oscillatory lens(SOL)

which includes two successive physical processes

electromagnetic focusing and electromagnetic imaging. The vectorial field distribution formed by delicate interference of multi-diffraction beams from SOL is theoretically predicted and then validated by a rigorous result calculated by the three-dimensional finite-difference time-domain method. The equivalent magnetic-dipole vectorial imaging theory is applied to quantitatively evaluate the imaging field in the detection plane

and the polarization filtering transmission mechanism of a high-numerical-aperture microscopic imaging system with high magnification is revealed. This approach provides a theoretical basis for applying SOL to these fields such as nanolithography

super-resolution microscopy and particle manipulation.

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references

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