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

Yijie Pan; Wei Jia; Junjie Yu; Kelly Dobson; Changhe Zhou; Yongtian Wang; Ting Chung Poon

doi:10.1364/OL.39.004176

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

Yijie Pan^*, Wei Jia, Junjie Yu, Kelly Dobson, Changhe Zhou, Yongtian Wang, Ting Chung Poon

^*Corresponding author for this work

School of Optics and Photonics

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

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.

Original language	English
Pages (from-to)	4176-4179
Number of pages	4
Journal	Optics Letters
Volume	39
Issue number	14
DOIs	https://doi.org/10.1364/OL.39.004176
Publication status	Published - 15 Jul 2014

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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.",

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AU - Pan, Yijie

AU - Jia, Wei

AU - Yu, Junjie

AU - Dobson, Kelly

AU - Zhou, Changhe

AU - Wang, Yongtian

AU - Poon, Ting Chung

PY - 2014/7/15

Y1 - 2014/7/15

N2 - 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.

AB - 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.

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

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