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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 7, Iss. 8 — Aug. 1, 2009
  • pp: 720–723

Pupil apodization for increasing data storage density

Vidal F. Canales, Pedro J. Valle, Jose E. Oti, and Manuel P. Cagigal  »View Author Affiliations


Chinese Optics Letters, Vol. 7, Issue 8, pp. 720-723 (2009)


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Abstract

We introduce a technique for increasing density in optical data storage systems. This technique is based on the use of a superresolving filter at the pupil of a confocal readout system. The main characteristic of this confocal readout system is that the light beam traverses twice through the pupil filter. We describe how to analyze the system performance for general filters, but we focus the study on filters with no focus displacement. Although the storage density attainable depends on the filter characteristics, we show that the storage density can be easily duplicated.

© 2009 Chinese Optics Letters

OCIS Codes
(100.6640) Image processing : Superresolution
(180.1790) Microscopy : Confocal microscopy
(210.4770) Optical data storage : Optical recording

Citation
Vidal F. Canales, Pedro J. Valle, Jose E. Oti, and Manuel P. Cagigal, "Pupil apodization for increasing data storage density," Chin. Opt. Lett. 7, 720-723 (2009)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-7-8-720

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