2015

Giovannini, D., Romero, J., Potoček, V., Ferenczi, G., Speirits, F. , Barnett, S. M. , Faccio, D. and Padgett, M. J. (2015) Spatially structured photons that travel in free space slower than the speed of light. Science, 347(6224), pp. 857-860. (doi: 10.1126/science.aaa3035) (PMID:25612608)

2014

Romero, J. and Padgett, M. (2014) Practical bound for dimensionality in high-dimensional entanglement. Proceedings of the National Academy of Sciences of the United States of America, 111(17), pp. 6122-6123. (doi: 10.1073/pnas.1404903111) (PMID:24737892) (PMCID:PMC4035931)

Chen, L., Lei, J. and Romero, J. (2014) Quantum digital spiral imaging. Light: Science and Applications, 3, e153. (doi: 10.1038/lsa.2014.34)

Giovannini, D., Romero, J. and Padgett, M.J. (2014) Interference of probability amplitudes: a simple demonstration within the Hong–Ou–Mandel experiment. Journal of Optics, 16(3), 032002. (doi: 10.1088/2040-8978/16/3/032002)

2013

McLaren, M., Romero, J., Padgett, M.J. , Roux, F.S. and Forbes, A. (2013) Two-photon optics of Bessel-Gaussian modes. Physical Review A: Atomic, Molecular and Optical Physics, 88(3), 032305. (doi: 10.1103/PhysRevA.88.033818)

Giovannini, D., Romero, J., Leach, J., Dudley, A., Forbes, A. and Padgett, M.J. (2013) Characterization of high-dimensional entangled systems via mutually unbiased measurements. Physical Review Letters, 110(14), 143601. (doi: 10.1103/PhysRevLett.110.143601) (PMID:25166985) (PMCID:25166985)

Romero, J., Giovannini, D., Tasca, D.S., Barnett, S.M. and Padgett, M.J. (2013) Tailored two-photon correlation and fair-sampling: a cautionary tale. New Journal of Physics, 15, 083047. (doi: 10.1088/1367-2630/15/8/083047)

2012

Chen, L. and Romero, J. (2012) Hardy’s nonlocality proof using twisted photons. Optics Express, 20(19), p. 21687. (doi: 10.1364/OE.20.021687)

Giovannini, D., Miatto, F.M., Romero, J., Barnett, S.M. , Woerdman, J.P. and Padgett, M.J. (2012) Determining the dimensionality of bipartite orbital-angular-momentum entanglement using multi-sector phase masks. New Journal of Physics, 14, 073046. (doi: 10.1088/1367-2630/14/7/073046)

Miatto, F.M., Giovannini, D., Romero, J., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2012) Bounds and optimisation of orbital angular momentum bandwidths within parametric down-conversion systems. European Physical Journal D, 66(7), p. 178. (doi: 10.1140/epjd/e2012-20736-x)

Padgett, M.J. , Giovannini, D., Lavery, M. , Romero, J., Barnett, S.M., Miatto, F., Boyd, R.W. and Leach, J. (2012) Photon Orbital Angular Momentum: Generation, Measurement and Application to QKD. In: Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI, Edinburgh, UK, 24-26 Sep 2012, 85421P-1-85421P-5. ISBN 9780819492838 (doi: 10.1117/12.975993)

Romero, J., Giovannini, D., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2012) Increasing the dimension in high-dimensional two-photon orbital angular momentum entanglement. Physical Review A: Atomic, Molecular and Optical Physics, 86(1), 012334. (doi: 10.1103/PhysRevA.86.012334)

Romero, J., Giovannini, D., McLaren, M.G., Galvez, E.J., Forbes, A. and Padgett, M.J. (2012) Orbital angular momentum correlations with a phase-flipped Gaussian mode pump beam. Journal of Optics, 14(8), 085401. (doi: 10.1088/2040-8978/14/8/085401)

2011

Romero, J., Leach, J., Jack, B., Dennis, M.R., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2011) Entangled optical vortex links. Physical Review Letters, 106(10), 100407. (doi: 10.1103/PhysRevLett.106.100407) (PMID:21469778)

2010

Romero, J., Leach, J., Jack, B., Barnett, S.M. , Padgett, M. and Franke-Arnold, S. (2010) Violation of Leggett inequalities in orbital angular momentum subspaces. New Journal of Physics, 12(12), 123007. (doi: 10.1088/1367-2630/12/12/123007)

Leach, J., Jack, B., Romero, J., Jha, A. K., Yao, A. M., Franke-Arnold, S. , Ireland, D. G. , Boyd, R. W., Barnett, S. M. and Padgett, M. J. (2010) Quantum correlations in optical angle-orbital angular momentum variables. Science, 329(5992), pp. 662-665. (doi: 10.1126/science.1190523) (PMID:20689014)

Romero, M. J., Bautista, G., Daria, V. R. and Saloma, C. (2010) Laser confocal microscope with wavelet-profiled point spread function. Optics Communications, 283(7), pp. 1217-1221. (doi: 10.1016/j.optcom.2009.11.077)

Jack, B., Yao, A.M., Leach, J., Romero, J., Franke-Arnold, S. , Ireland, D.G. , Barnett, S.M. and Padgett, M.J. (2010) Entanglement of arbitrary superpositions of modes within two-dimensional orbital angular momentum state spaces. Physical Review A: Atomic, Molecular and Optical Physics, 81(4), 043844. (doi: 10.1103/PhysRevA.81.043844)

Boyd, R. W., Leach, J., Jack, B., Romero, J., Jha, A. K., Yao, A. M., Franke-Arnold, S. , Ireland, D. G. , Barnett, S. M. and Padgett, M. J. (2010) New twist on light beams for quantum information science. Optics and Photonics News, 21(12), p. 48. (doi: 10.1364/OPN.21.12.000048)

2009

Bautista, G., Romero, M. J., Tapang, G. and Daria, V. R. (2009) Parallel two-photon photopolymerization of microgear patterns. Optics Communications, 282(18), pp. 3746-3750. (doi: 10.1016/j.optcom.2009.06.047)

Jack, B., Leach, J., Romero, J., Franke-Arnold, S., Ritsch-Marte, M., Barnett, S.M. and Padgett, M.J. (2009) Holographic ghost imaging and the violation of a Bell inequality. Physical Review Letters, 103(8), 083602. (doi: 10.1103/PhysRevLett.103.083602) (PMID:19792729)

Leach, J., Jack, B., Romero, J., Ritsch-Marte, M., Boyd, R.W., Jha, A.K., Barnett, S.M., Franke-Arnold, S. and Padgett, M.J. (2009) Violation of a Bell inequality in two-dimensional orbital angular momentum state-spaces. Optics Express, 17(10), pp. 8287-8293. (doi: 10.1364/OE.17.008287) (PMID:19434161)

2007

Romero, M. J. and Daria, V. R. (2007) Modified filter design to optimize the synthetic reference wave in the generalized phase contrast method. Optics Communications, 280(2), pp. 237-242. (doi: 10.1016/j.optcom.2007.08.029)

Articles

Giovannini, D., Romero, J., Potoček, V., Ferenczi, G., Speirits, F. , Barnett, S. M. , Faccio, D. and Padgett, M. J. (2015) Spatially structured photons that travel in free space slower than the speed of light. Science, 347(6224), pp. 857-860. (doi: 10.1126/science.aaa3035) (PMID:25612608)

Romero, J. and Padgett, M. (2014) Practical bound for dimensionality in high-dimensional entanglement. Proceedings of the National Academy of Sciences of the United States of America, 111(17), pp. 6122-6123. (doi: 10.1073/pnas.1404903111) (PMID:24737892) (PMCID:PMC4035931)

Chen, L., Lei, J. and Romero, J. (2014) Quantum digital spiral imaging. Light: Science and Applications, 3, e153. (doi: 10.1038/lsa.2014.34)

Giovannini, D., Romero, J. and Padgett, M.J. (2014) Interference of probability amplitudes: a simple demonstration within the Hong–Ou–Mandel experiment. Journal of Optics, 16(3), 032002. (doi: 10.1088/2040-8978/16/3/032002)

McLaren, M., Romero, J., Padgett, M.J. , Roux, F.S. and Forbes, A. (2013) Two-photon optics of Bessel-Gaussian modes. Physical Review A: Atomic, Molecular and Optical Physics, 88(3), 032305. (doi: 10.1103/PhysRevA.88.033818)

Giovannini, D., Romero, J., Leach, J., Dudley, A., Forbes, A. and Padgett, M.J. (2013) Characterization of high-dimensional entangled systems via mutually unbiased measurements. Physical Review Letters, 110(14), 143601. (doi: 10.1103/PhysRevLett.110.143601) (PMID:25166985) (PMCID:25166985)

Romero, J., Giovannini, D., Tasca, D.S., Barnett, S.M. and Padgett, M.J. (2013) Tailored two-photon correlation and fair-sampling: a cautionary tale. New Journal of Physics, 15, 083047. (doi: 10.1088/1367-2630/15/8/083047)

Chen, L. and Romero, J. (2012) Hardy’s nonlocality proof using twisted photons. Optics Express, 20(19), p. 21687. (doi: 10.1364/OE.20.021687)

Giovannini, D., Miatto, F.M., Romero, J., Barnett, S.M. , Woerdman, J.P. and Padgett, M.J. (2012) Determining the dimensionality of bipartite orbital-angular-momentum entanglement using multi-sector phase masks. New Journal of Physics, 14, 073046. (doi: 10.1088/1367-2630/14/7/073046)

Miatto, F.M., Giovannini, D., Romero, J., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2012) Bounds and optimisation of orbital angular momentum bandwidths within parametric down-conversion systems. European Physical Journal D, 66(7), p. 178. (doi: 10.1140/epjd/e2012-20736-x)

Romero, J., Giovannini, D., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2012) Increasing the dimension in high-dimensional two-photon orbital angular momentum entanglement. Physical Review A: Atomic, Molecular and Optical Physics, 86(1), 012334. (doi: 10.1103/PhysRevA.86.012334)

Romero, J., Giovannini, D., McLaren, M.G., Galvez, E.J., Forbes, A. and Padgett, M.J. (2012) Orbital angular momentum correlations with a phase-flipped Gaussian mode pump beam. Journal of Optics, 14(8), 085401. (doi: 10.1088/2040-8978/14/8/085401)

Romero, J., Leach, J., Jack, B., Dennis, M.R., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2011) Entangled optical vortex links. Physical Review Letters, 106(10), 100407. (doi: 10.1103/PhysRevLett.106.100407) (PMID:21469778)

Romero, J., Leach, J., Jack, B., Barnett, S.M. , Padgett, M. and Franke-Arnold, S. (2010) Violation of Leggett inequalities in orbital angular momentum subspaces. New Journal of Physics, 12(12), 123007. (doi: 10.1088/1367-2630/12/12/123007)

Leach, J., Jack, B., Romero, J., Jha, A. K., Yao, A. M., Franke-Arnold, S. , Ireland, D. G. , Boyd, R. W., Barnett, S. M. and Padgett, M. J. (2010) Quantum correlations in optical angle-orbital angular momentum variables. Science, 329(5992), pp. 662-665. (doi: 10.1126/science.1190523) (PMID:20689014)

Romero, M. J., Bautista, G., Daria, V. R. and Saloma, C. (2010) Laser confocal microscope with wavelet-profiled point spread function. Optics Communications, 283(7), pp. 1217-1221. (doi: 10.1016/j.optcom.2009.11.077)

Jack, B., Yao, A.M., Leach, J., Romero, J., Franke-Arnold, S. , Ireland, D.G. , Barnett, S.M. and Padgett, M.J. (2010) Entanglement of arbitrary superpositions of modes within two-dimensional orbital angular momentum state spaces. Physical Review A: Atomic, Molecular and Optical Physics, 81(4), 043844. (doi: 10.1103/PhysRevA.81.043844)

Boyd, R. W., Leach, J., Jack, B., Romero, J., Jha, A. K., Yao, A. M., Franke-Arnold, S. , Ireland, D. G. , Barnett, S. M. and Padgett, M. J. (2010) New twist on light beams for quantum information science. Optics and Photonics News, 21(12), p. 48. (doi: 10.1364/OPN.21.12.000048)

Bautista, G., Romero, M. J., Tapang, G. and Daria, V. R. (2009) Parallel two-photon photopolymerization of microgear patterns. Optics Communications, 282(18), pp. 3746-3750. (doi: 10.1016/j.optcom.2009.06.047)

Jack, B., Leach, J., Romero, J., Franke-Arnold, S., Ritsch-Marte, M., Barnett, S.M. and Padgett, M.J. (2009) Holographic ghost imaging and the violation of a Bell inequality. Physical Review Letters, 103(8), 083602. (doi: 10.1103/PhysRevLett.103.083602) (PMID:19792729)

Leach, J., Jack, B., Romero, J., Ritsch-Marte, M., Boyd, R.W., Jha, A.K., Barnett, S.M., Franke-Arnold, S. and Padgett, M.J. (2009) Violation of a Bell inequality in two-dimensional orbital angular momentum state-spaces. Optics Express, 17(10), pp. 8287-8293. (doi: 10.1364/OE.17.008287) (PMID:19434161)

Romero, M. J. and Daria, V. R. (2007) Modified filter design to optimize the synthetic reference wave in the generalized phase contrast method. Optics Communications, 280(2), pp. 237-242. (doi: 10.1016/j.optcom.2007.08.029)

Conference Proceedings

Padgett, M.J. , Giovannini, D., Lavery, M. , Romero, J., Barnett, S.M., Miatto, F., Boyd, R.W. and Leach, J. (2012) Photon Orbital Angular Momentum: Generation, Measurement and Application to QKD. In: Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI, Edinburgh, UK, 24-26 Sep 2012, 85421P-1-85421P-5. ISBN 9780819492838 (doi: 10.1117/12.975993)