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Proceedings Paper

Super-resolution in focusing system by three-zone pure phase plate
Author(s): Xiumin Gao; Qiufang Zhan; Jinsong Li; Jian Wang; Songlin Zhuang
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Paper Abstract

Superresolution is very important in imaging and optical storage systems, and has attracted much attention. In this article, concentric three-zone phase plate with 0, pi, 0 phase variation has been investigated numerically to show that this kind of phase plate can be used to obtain three dimensional superresolution. Focal depth, focal shift, full width half maximum, superresolution effect are listed for different radii of the phase zones, which paves the way for design of the phase plate, such as for purpose of radial superresolution with high focal depth in optical storage.

Paper Details

Date Published: 29 August 2009
PDF: 5 pages
Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73820H (29 August 2009); doi: 10.1117/12.831355
Show Author Affiliations
Xiumin Gao, Hangzhou Dianzi Univ. (China)
Univ. of Shanghai for Science and Technology (China)
Qiufang Zhan, China Standard Software Co., Ltd (China)
Jinsong Li, China Jiliang Univ. (China)
Jian Wang, Hangzhou Dianzi Univ. (China)
Songlin Zhuang, Univ. of Shanghai for Science and Technology (China)


Published in SPIE Proceedings Vol. 7382:
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging
Farzin Amzajerdian; Chun-qing Gao; Tian-yu Xie, Editor(s)

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