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dc.contributor.author Romero, J
dc.contributor.author Giovannini, D
dc.contributor.author McLaren, MG
dc.contributor.author Galvez, EJ
dc.contributor.author Forbes, A
dc.contributor.author Padgett, MJ
dc.date.accessioned 2012-11-21T08:32:37Z
dc.date.available 2012-11-21T08:32:37Z
dc.date.issued 2012-08
dc.identifier.citation Romero, J, Giovannini, D, McLaren, M.G, Galvez, E.J, Forbes, A and Padgett, MJ. 2012. Orbital angular momentum correlations with a phase-flipped Gaussian mode pump beam. Journal of Optics, Vol. 14 (8), doi:10.1088/2040-8978/14/8/085401 en_US
dc.identifier.issn 2040-8978
dc.identifier.issn 2040-8986
dc.identifier.uri http://iopscience.iop.org/2040-8986/14/8/085401/
dc.identifier.uri http://hdl.handle.net/10204/6347
dc.description Copyright: 2012 European Optical Society. This is an ABSTRACT ONLY. The definitive version is published in Journal of Optics, Vol. 14 (8), doi:10.1088/2040-8978/14/8/085401 en_US
dc.description.abstract We report orbital angular momentum (OAM) and angle correlations between signal and idler photons observed when the nonlinear crystal used in spontaneous parametric down-conversion is illuminated by a non-fundamental Gaussian pump beam. We introduce a p-phase step to the transverse profile of the pump, before it impinges on the crystal to create a phase-flipped Gaussian mode, which is a close approximation to an HG10 Hermite–Gaussian-like beam. The correlations in OAM and angular position are then measured holographically using two separate spatial light modulators in the signal and idler arms. We show the transfer of the OAM spectrum of the pump to the down-converted fields, manifested as a redistribution in the OAM correlations consistent with OAM conservation. This corresponds to a modulation of the angular position correlations consistent with the Fourier relationship between the OAM and angle. en_US
dc.language.iso en en_US
dc.publisher European Optical Society en_US
dc.relation.ispartofseries Workflow;9627
dc.subject Orbital angular momentum en_US
dc.subject OAM en_US
dc.subject Optics en_US
dc.subject Gaussian pump beams en_US
dc.subject Quantum optics en_US
dc.subject Lasers en_US
dc.subject Spontaneous parametric down-conversion en_US
dc.title Orbital angular momentum correlations with a phase-flipped Gaussian mode pump beam en_US
dc.type Article en_US


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