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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 10 — May. 15, 2007
  • pp: 1220–1222

Wide viewing angle skewed effect of the point spread function in a wavefront coding system

Tingyu Zhao, Zi Ye, Wenzi Zhang, Yanping Chen, and Feihong Yu  »View Author Affiliations


Optics Letters, Vol. 32, Issue 10, pp. 1220-1222 (2007)
http://dx.doi.org/10.1364/OL.32.001220


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Abstract

The point spread function (PSF) of a wavefront coding (WFC) system with a cubic phase mask is analyzed with a wide viewing angle based on physical optics for what is believed to be the first time. Two coordinate transformations are made to generate a pupil function, from which we obtain the encoded PSF of the WFC system with defocus parameters W 020 and object angles α and β. The encoded PSFs are further side extended as the object angles get wider. When α β < 0 , the included angle Φ of encoded PSF will skew to an obtuse angle. When α β = 0 , Φ remains orthogonal; when α β > 0 , Φ will skew to an acute angle. Furthermore, the effect of skew and side extension is even symmetric about W 020 . As a result, the wide viewing angle has a bad effect on the imaging quality of the WFC system.

© 2007 Optical Society of America

OCIS Codes
(000.3870) General : Mathematics
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(220.0220) Optical design and fabrication : Optical design and fabrication

ToC Category:
Fourier Optics and Optical Signal Processing

History
Original Manuscript: December 22, 2006
Revised Manuscript: February 12, 2007
Manuscript Accepted: February 23, 2007
Published: April 17, 2007

Citation
Tingyu Zhao, Zi Ye, Wenzi Zhang, Yanping Chen, and Feihong Yu, "Wide viewing angle skewed effect of the point spread function in a wavefront coding system," Opt. Lett. 32, 1220-1222 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-10-1220


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