期刊
OPTICS EXPRESS
卷 18, 期 21, 页码 22128-22140出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.18.022128
关键词
-
类别
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Fonds quebecois de recherche sur la nature et les technologies (FQRNT)
- Canadian Institute for Photonic Innovations (ICIP/CIPI)
- Centre d'optique, photonique et laser (COPL), Quebec
The Richards-Wolf theory and the complex point-source method are both used to express the phasor of the electric field of tightly focused beams, but the connection between these two approaches is not straightforward. In this paper, the Richards-Wolf vector field equations are used to find the electromagnetic field of a TM01 beam in the neighborhood of the focus of a 4 pi focusing system, such as a parabolic mirror with infinite transverse dimensions. Closed-form solutions are found for the distribution of the fields at any point in the vicinity of the focus; these solutions are identical to the electromagnetic field obtained with the complex source-point method in which sources are accompanied by sinks. This work thus establishes a connection between the Richards-Wolf theory and the complex sink/source model. The vector magnetic potential is introduced to simplify the computation of the six electromagnetic field components. The method is then used to find analytical expressions for the electromagnetic field of strongly focused TM01 beams affected by primary aberrations such as curvature of field, coma, astigmatism and spherical aberration. (C) 2010 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。
推荐
暂无数据