Improved confocal readout system for three-dimensional super-resolution in optical data storage

Xiaofeng Zhao; Chengfang Li; Hao Ruan

doi:10.1117/12.668424

20 January 2006 Improved confocal readout system for three-dimensional super-resolution in optical data storage

Xiaofeng Zhao, Chengfang Li, Hao Ruan

Proceedings Volume 6027, ICO20: Optical Information Processing; 60274P (2006) https://doi.org/10.1117/12.668424
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

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.

Citation Download Citation

Xiaofeng Zhao, Chengfang Li, and Hao Ruan "Improved confocal readout system for three-dimensional super-resolution in optical data storage", Proc. SPIE 6027, ICO20: Optical Information Processing, 60274P (20 January 2006); https://doi.org/10.1117/12.668424

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KEYWORDS

Super resolution

Point spread functions

Confocal microscopy

Optical filters

Optical storage

3D optical data storage

Optical discs

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