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Proceedings Paper

Focal properties of cylindrically polarized beams by a high numerical aperture parabolic mirror
Author(s): Lina Guo; Zhilie Tang; Chongqing Liang; Jinglin Liu
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Paper Abstract

In this article, the focal properties of cylindrically polarized beams through a high numerical aperture parabolic mirror are numerically investigated. The vector field distributions within the focal region for cylindrically polarized beams are calculated by using the Richards-Wolf vectorial diffraction theory. It shows that the three-dimensional intensity distributions in the vicinity of the focus is dependent on the polarization rotation angle, topological charge and numerical aperture value. Additionally, some interesting focal volume structures, such as adjustably confined flat-topped focus, doughnut focal hole can be obtained by controlling polarization rotator angle. The tightly focused cylindrically polarized beams by a high numerical aperture parabolic mirror have possible applications in particle acceleration, optical trapping and manipulating, single molecule imaging and high resolution imaging microscopy, et al.

Paper Details

Date Published: 24 October 2009
PDF: 6 pages
Proc. SPIE 7517, Photonics and Optoelectronics Meetings (POEM) 2009: Optical Storage and New Storage Technologies, 75170A (24 October 2009); doi: 10.1117/12.843638
Show Author Affiliations
Lina Guo, South China Normal Univ. (China)
GuangDong Polytechnic Normal Univ. (China)
Zhilie Tang, South China Normal Univ. (China)
Chongqing Liang, South China Normal Univ. (China)
Jinglin Liu, GuangDong Polytechnic Normal Univ. (China)


Published in SPIE Proceedings Vol. 7517:
Photonics and Optoelectronics Meetings (POEM) 2009: Optical Storage and New Storage Technologies

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