20 January 2006 Improved confocal readout system for three-dimensional super-resolution in optical data storage
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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.
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Xiaofeng Zhao, Chengfang Li, 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); doi: 10.1117/12.668424; https://doi.org/10.1117/12.668424
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