Heralded phase-contrast imaging using an orbital angular momentum phase-filter

Aspden, R. S., Morris, P. A., He, R., Chen, Q. and Padgett, M. J. (2016) Heralded phase-contrast imaging using an orbital angular momentum phase-filter. Journal of Optics, 18(5), 055204. (doi: 10.1088/2040-8978/18/5/055204)

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We utilise the position and orbital angular momentum (OAM) correlations between the signal and idler photons generated in the down-conversion process to obtain ghost images of a phase object. By using an OAM phase filter, which is non-local with respect to the object, the images exhibit isotropic edge-enhancement. This imaging technique is the first demonstration of a full-field, phase-contrast imaging system with non-local edge enhancement, and enables imaging of phase objects using significantly fewer photons than standard phase-contrast imaging techniques.

Item Type:Articles
Additional Information:This work was funded by the UK EPSRC through a Program Grant (EP/I012451/1) and the ERC through an Advanced Grant (PE2, ERC-2013-ADG). Raw data can be found in open-access repository at DOI http://dx.doi.org/10.5525/gla.researchdata.273
Glasgow Author(s) Enlighten ID:Padgett, Professor Miles and Aspden, Mr Reuben and MORRIS, PETER
Authors: Aspden, R. S., Morris, P. A., He, R., Chen, Q., and Padgett, M. J.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Journal of Optics
Publisher:Institute of Physics Publishing Ltd.
ISSN (Online):2040-8986
Published Online:21 March 2016
Copyright Holders:Copyright © 2016 The Authors
First Published:First published in Journal of Optics 18(5):055204
Publisher Policy:Reproduced under a Creative Commons License
Data DOI:10.5525/gla.researchdata.273

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
549871Challenges in Orbital Angular MomentumMiles PadgettEngineering & Physical Sciences Research Council (EPSRC)EP/I012451/1P&A - PHYSICS & ASTRONOMY