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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 4 — Feb. 15, 2013
  • pp: 585–587

Rotating point spread function via pupil-phase engineering

Sudhakar Prasad  »View Author Affiliations

Optics Letters, Vol. 38, Issue 4, pp. 585-587 (2013)

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A simple approach based on the use of a properly designed pupil-phase profile can yield a 3D point-spread function (PSF) that rotates with changing defocus, while keeping its transverse shape approximately invariant over ±34 waves of defocus. Unlike Gauss–Laguerre mode-based approaches, it generalizes readily for encoding spherical aberration too via PSF rotation.

© 2013 Optical Society of America

OCIS Codes
(100.6890) Image processing : Three-dimensional image processing
(110.6880) Imaging systems : Three-dimensional image acquisition
(110.1758) Imaging systems : Computational imaging
(110.7348) Imaging systems : Wavefront encoding

ToC Category:
Imaging Systems

Original Manuscript: November 21, 2012
Revised Manuscript: January 18, 2013
Manuscript Accepted: January 21, 2013
Published: February 14, 2013

Sudhakar Prasad, "Rotating point spread function via pupil-phase engineering," Opt. Lett. 38, 585-587 (2013)

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