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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 14 — Jul. 15, 2014
  • pp: 4176–4179

Edge extraction using a time-varying vortex beam in incoherent digital holography

Yijie Pan, Wei Jia, Junjie Yu, Kelly Dobson, Changhe Zhou, Yongtian Wang, and Ting-Chung Poon  »View Author Affiliations


Optics Letters, Vol. 39, Issue 14, pp. 4176-4179 (2014)
http://dx.doi.org/10.1364/OL.39.004176


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Abstract

Edge extraction using a time-varying vortex beam (TV-VB) is demonstrated in optical scanning holography (OSH) operating in an incoherent mode. OSH is a two-pupil heterodyne scanning optical system. We propose that one of the pupil functions used is a delta function and the other pupil function is a spiral phase plate (SPP). The interference of these pupils creates a TV-VB to scan over an object to record the edge-only information of an object holographically. We also find that a reconstructed edge with better contrast is achieved by translating the SPP away from the pupil plane. Experimental results are compared with computer simulations and found to be in good agreement.

© 2014 Optical Society of America

OCIS Codes
(070.6110) Fourier optics and signal processing : Spatial filtering
(100.2980) Image processing : Image enhancement
(090.1995) Holography : Digital holography
(260.6042) Physical optics : Singular optics

ToC Category:
Holography

History
Original Manuscript: April 28, 2014
Revised Manuscript: June 5, 2014
Manuscript Accepted: June 16, 2014
Published: July 9, 2014

Virtual Issues
Vol. 9, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Yijie Pan, Wei Jia, Junjie Yu, Kelly Dobson, Changhe Zhou, Yongtian Wang, and Ting-Chung Poon, "Edge extraction using a time-varying vortex beam in incoherent digital holography," Opt. Lett. 39, 4176-4179 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-14-4176

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