4.6 Article

Experimental generation of complex optical fields for diffraction limited optical focus with purely transverse spin angular momentum

期刊

OPTICS EXPRESS
卷 25, 期 8, 页码 8966-8974

出版社

OPTICAL SOC AMER
DOI: 10.1364/OE.25.008966

关键词

-

类别

资金

  1. National Natural Science Foundation of China (NSFC) [91438108, 61505062]
  2. China Scholarship Council

向作者/读者索取更多资源

We demonstrate a method to generate complex optical fields at the pupil plane of a high numerical aperture (NA) objective lens for the creation of diffraction limited optical focus with purely transverse spin angular momentum. The complex optical fields are analytically deduced through reversing the radiated patterns from two electric dipoles, which are located at the focal point of the high NA lens and oscillate respectively in x- and z-directions with phase difference of p/2. The derived fields can be experimentally created with a vectorial optical field generator. Using the Richard-Wolf vectorial diffraction theory, the electric fields within the focal region are calculated to evaluate the intensities and polarization distributions of the tightly focused beams corresponding to both the theoretical and experimentally generated pupil fields and the results clearly demonstrate the validity of the proposed technique. (C) 2017 Optical Society of America

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据