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Proceedings Paper

Improved confocal readout system for three-dimensional super-resolution in optical data storage
Author(s): Xiaofeng Zhao; Chengfang Li; Hao Ruan
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Paper Abstract

We have proposed an improved confocal readout system to achieve three-dimensional superresolution. This improved system is based on a combination of two different annular binary phase filters, the one designed for increasing the transverse superresolution and the other for achieving axial superresolution. By adjusting the pupil parameters each pupil can be well designed. Simulation results show that with this improved system we successfully reduce the area of the central lobe of three-dimensional PSF of the read optics. Furthermore, the side-lobes are extinguished.

Paper Details

Date Published: 20 January 2006
PDF: 6 pages
Proc. SPIE 6027, ICO20: Optical Information Processing, 60274P (20 January 2006); doi: 10.1117/12.668424
Show Author Affiliations
Xiaofeng Zhao, Wuhan Univ. (China)
Chengfang Li, Wuhan Univ. (China)
Hao Ruan, Shanghai Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 6027:
ICO20: Optical Information Processing
Yunlong Sheng; Songlin Zhuang; Yimo Zhang, Editor(s)

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