N. Bornman, M. Agnew, F. Zhu, A. Valles, A. Forbes, J. Leach, Contrast inverted ghost imaging with non-interacting photons, https://arxiv.org/abs/1809.02581

G. Knee, E. Bolduc, J. Leach, and E. M. Gauger, Quantum process tomography via completely positive and trace-preserving projection, Phys. Rev. A 98, 061336

S. Chan, A. Halimi, F. Zhu, I. Gyongy, R. K. Henderson, R. Bowman, S. McLaughlin, G. S. Buller, J. Leach, Long-range depth imaging using a single-photon detector array and non-local data fusion, https://arxiv.org/abs/1812.04943

A. Lyons, G. Knee, E. Bolduc, T. Roger, J. Leach, E. Gauger, and D. Faccio, Attosecond-resolution Hong-Ou-Mandel interferometry, Science Advances, 4, 5, eaap9416

P. Caramazza, K. Wilson, G. Gariepy, J. Leach, S. McLaughlin, D. Faccio, and Y. Altmann, Enhancing the recovery of a temporal sequence of images using joint deconvolution, Scientific Reports, 8, 5257


S. Chan, R.E. Warburton, G. Gariepy, Y. Altmann, S. McLaughlin, J. Leach and D. Faccio, Fast tracking of hidden objects with single-pixel detectors, Electronic Letters, 53, 15, 1005-1008

E. Bolduc, D. Faccio, and J. Leach, Acquisition of Multiple Photon Pairs with an EMCCD Camera, Journal of Optics, 19, 5, 054006

E. Bolduc, G.C. Knee, E.M. Gauger, and J. Leach, Projected gradient decent algorithms for quantum state tomography, njp Quantum Information, 3, 44

Y Zhang, M Agnew, T Roger, F S Roux, T Konrad, D Faccio, J Leach, A Forbes, Simultaneous swapping of multiple orbital angular momentum states of light, Nature Communications 8, 632

R. Warburton, C. Aniculaesei, M. Clerici, Y. Altmann, G. Gariepy, R. McCracken, D. Reid, S. McLaughlin, M. Petrovich, J. Hayes, R. Henderson, D. Faccio, J. Leach, Observation of laser pulse propagation in optical fibers with a SPAD camera, Scientific Reports, 7, 43302 

S. Chan, R. Warburton, G. Gariepy, J. Leach, and D. Faccio, Non-line-of-sight tracking of people at long range, Optics Express, 25, Issue 9, 10109-10117


Y. Zhang, F. Roux, T. Konrad, M. Agnew, J. Leach, A. Forbes, Engineering two-photon high-dimensional quantum states through quantum interference, Science Advances, 2, 2, e1501165

E. Bolduc, G. Gariepy, J. Leach, Direct measurement of large-scale quantum state via expectation values of non-Hermitian matrices, 7, 10439

G. Gariepy, F. Tonolini, R. Henderson, J. Leach, D. Faccio, Detection and tracking of objects hidden from view, Nature Photonics, 10, 23-26

J. Leach, E. Bolduc, F.M. Miatto, K. Piche, G. Leuchs, R.W. Boyd, The duality principle in the presence of postselection, Scientific Reports, 6, 19944


G. Gariepy, N. Krstajić, R. Henderson, C. Li, R. R. Thomson, G. S. Buller, B. Heshmat, R. Raskar, J. Leach, D. Faccio, Single-photon sensitive light-in-flight imaging, Nature Communications, 6, 6021

M. Edgar, M. Padgett, D. Faccio, and J. Leach, More than meets the eye, Physics World, March 


F. Tonolini, S. Chan, M. Agnew, A. Lindsay, J, Leach, Reconstructing high-dimensional two-photon entangled states via compressive sensing, Scientific Reports, 4, 6542

G. Gariepy, J. Leach, K.T. Kim, T. J. Hammond, E. Frumker, R.W. Boyd, and P. B. Corkum, Creating high-harmonic beams with controlled orbital angular momentum, Physical Review Letters, 113, 153901

E. Bolduc, J. Leach, F.M. Miatto, G. Leuchs, R.W. Boyd, A "fair-sampling" perspective on an apparent violation of duality, PNAS, 10.1073/pnas.1400106111

M. Agnew, E. Bolduc, K.J. Resch, S. Franke-Arnold, J. Leach, Discriminating single-photon states unambiguously in high dimensions, Physical Review Letters 113, 020501

A.S. Johnson, K. Piché, J.Z. Salvail, J. Leach, and R.W. Boyd, Eigenmode super-resolution imaging in arbitrary optical systems, Journal of Modern Optics 60, 1931

M. Malik, M. Mirhosseini, M.P.J. Lavery, J. Leach, M.J. Padgett, and R.W. Boyd, Direct measurement of a 27-dimensional orbital-angular-momentum state vector, Nature Communications 5, 3115


D. Giovannini, J. Romero, J. Leach, A. Dudley, A. Forbes, and M.J. Padgett, Characterization of High-Dimensional Entangled Systems via Mutually Unbiased Measurements, Physical Review Letters 110, 143601

M. Agnew, J.Z. Salvail, J. Leach, and R.W. Boyd, Generation of Orbital Angular Momentum Bell States and their Verification via Accessible Nonlinear Witnesses, Physical Review Letters 111, 030402
Editor's Suggestion. Viewpoint in Physics.

J.Z. Salvail, M. Agnew, A.S. Johnson, E. Bolduc, J. Leach, and R.W. Boyd, Full characterisation of polarisation states of light via direct measurement, Nature Photonics 7, 316


M. Malik, S. Murugkar, J. Leach, and R.W. Boyd, Measurement of the orbital-angular-momentum spectrum of fields with partial angular coherence using double-angular-slit interference, Physical Review A 86, 063806

K. Piché, J. Leach, A.S. Johnson, J.Z. Salvail, M.I. Kolobov, and R.W. Boyd, Experimental realization of optical eigenmode super-resolution, Optics Express 20, 26424

M. McLaren, M. Agnew, J. Leach, F.S. Roux, M.J. Padgett, R.W. Boyd, and A. Forbes, Entangled Bessel-Gaussian beams, Optics Express 20, 23589

J. Leach, E. Bolduc, D.J. Gauthier, and R.W. Boyd, Secure information capacity of photons entangled in many dimensions, Physical Review A 85, 060304(R)

M. Malik, M. O'Sullivan, B. Rodenburg, M. Mirhosseini, J. Leach, M.P.J. Lavery, M.J. Padgett, and R.W. Boyd, Influence of atmospheric turbulence on optical communications using orbital angular momentum for encoding, Optics Express 20, 13195

M.P. Edgar, D.S. Tasca, F. Izdebski, R.E. Warburton, J. Leach, M. Agnew, G.S. Buller, R.W. Boyd, and M.J. Padgett, Imaging high-dimensional spatial entanglement with a camera, Nature Communications 3, 984

M. Agnew, J. Leach, and R.W. Boyd, Observation of entanglement witnesses for orbital angular momentum, European Physical Journal D 66, 156

J. Leach, R.E. Warburton, D.G. Ireland, F. Izdebski, S.M. Barnett, A.M. Yao, G.S. Buller, and M.J. Padgett, Quantum correlations in position, momentum, and intermediate bases for a full optical field of view, Physical Review A 85, 013827

S.M. Zhao, J. Leach, L.Y. Gong, J. Ding, and B.Y. Zheng, Aberration corrections for free-space optical communications in atmosphere turbulence using orbital angular momentum states, Optics Express 20, 452


M. Agnew, J. Leach, M. McLaren, F.S. Roux, and R.W. Boyd, Tomography of the quantum state of photons entangled in high dimensions, Physical Review A 84, 062101

A.C. Dada, J. Leach, G.S. Buller, M.J. Padgett, and E. Andersson, Experimental high-dimensional two-photon entanglement and violations of generalized Bell inequalities, Nature Physics 7, 677

B. Jack, P. Aursand, S. Franke-Arnold, D.G. Ireland, J. Leach, S.M. Barnett, and M.J. Padgett, Demonstration of the angular uncertainty principle for single photons, Journal of Optics 13, 064017

J. Romero, J. Leach, B. Jack, M.R. Dennis, S. Franke-Arnold, S.M. Barnett, and M.J. Padgett, Entangled Optical Vortex Links, Physical Review Letters 106, 100407

R.E. Warburton, F. Izdebski, C. Reimer, J. Leach, D.G. Ireland, M.J. Padgett, G.S. Buller, Single-photon position to time multiplexing using a fibre array, Optics Express 19, 2670