See the SQO Impact Shot Policy.


  • General Lossless Spatial Polarization Transformations arXiv:1702.06108.
  • Quantum metrology at the limit with extremal Majorana constellations arXiv:1612.06804.
  • Experimental investigation of Popper’s proposed ghost-diffraction experiment arXiv:1612.06826.  
  • High-Dimensional Intra-City Quantum Cryptography with Structured PhotonsarXiv:1612.05195.
  • Measuring an electron beam’s orbital angular momentum spectrumarXiv:1609.09129.


  • A New Twist on Relativistic Electron Vortices, H Larocque, and E Karimi, Physics Viewpoint 10, 26 (2017).
  • Realization of electron vortices with large orbital angular momentum using miniature holograms fabricated by electron beam lithography, E. Mafakheri, A. H. Tavabi, P.-H. Lu,   R. Balboni,   F. Venturi, C. Menozzi, G. C. Gazzadi, S. Frabboni, A. Sit, R. E. Dunin-Borkowski,   E. Karimi, and V. Grillo, Applied Physics Letters 110, 093113 (2017).
  • High-dimensional quantum cloning and applications to quantum hacking, F Bouchard, R Fickler, R W Boyd, and E Karimi, Science Advances 3, e1601915  (2017).
  • Observation of subluminal twisted light in vacuum: reply, F Bouchard, R W Boyd, and E Karimi, Optica 4, 207-208 (2017).
  • Revealing optical vortices with a small number of photons, W Zhang, J Wang, F Li, L Chen, E Karimi, Laser & Photonic Review 11, 1770003 (2017).
  • Roadmap on structured light, H Rubinsztein-Dunlop, A Forbes, M V Berry, M R Dennis, D L Andrews, M Mansuripur, C Denz, C Alpmann, P Banzer, T Bauer, E Karimi, L Marrucci, M Padgett, M Ritsch-Marte, N M Litchinitser, N P Bigelow, C Rosales- Guzmán, A Belmonte, J P Torres, T W Neely, M Baker, R Gordon, A Stilgoe, J Romero, A G. White, R Fickler,, A.E. Willner, G Xie, B McMorran, A. M. Weiner, Journal of Optics 19, 013001 (2017).


  • Polarization shaping for control of nonlinear propagation, F Bouchard, H Larocque, A M Yao, C Travis, I De Leon, A Rubano, E Karimi, G L Oppo, and R W Boyd, Physical Review Letters 117, 233903 (2016).
  • Arbitrary optical wavefront shaping via spin-to-orbit coupling, H Larocque, J Gagnon-Bischoff, F Bouchard, R Fickler, J Upham, R W Boyd, and E Karimi, Journal of Optics 18, 124002 (2016)
  • Nondestructive measurement of orbital angular momentum for an electron beam, H Larocque, F Bouchard, V Grillo, A Sit, S Frabboni, R E Dunin-Borkowski, M J Padgett, R W Boyd, and E Karimi, Physical Review Letters 117, 154801 (2016).
  • Super-critical phasematching for photon pair generation in structured light modes, R Y Saaltink, L Giner, R W Boyd, E Karimi, J S Lundeen, Optics Express 24, 24495 (2016).
  • Hong-Ou-Mandel interference of entangled Hermite-Gauss modes, Y Zhang, S Prabhakar, C Rosales-Guzmán, F S Roux, E Karimi, and A Forbes, Physical Review A 94, 033855 (2016).
  • Tighter spots of light with superposed orbital angular momentum beams, P Woźniak, P Banzer, F Bouchard, E Karimi, G Leuchs, R W Boyd, Physical  Review A 94,021803(R) (2016).
  • Quantum probabilities from quantum entanglement: Experimentally unpacking the Born rule, J Harris, F Bouchard, E Santamato, W H Zurek, R W Boyd, E Karimi, New Journal of Physics 18, 053013 (2016).
  • Generation and Application of Bessel Beams in Electron Microscopy, V Grillo, J Harris, G Gazzadi, R Balboni, E Mafakheri, M R Dennis, S Frabbonia, R W Boyd, E Karimi, Ultramicroscopy 166, 48 (2016).
  • Observation of sub-luminal twisted light in vacuum, F Bouchard, J Harris, H Mand, R W Boyd, and E Karimi, Optica 3, 351 (2016). See also comment and the reply to the comment.


  • Classical entanglement? E Karimi and R W Boyd, Science 350, 1172 (2015).
  • Quantifying the impact of proximity error correction on plasmonic metasurfaces, S A Schulz, J Upham, F Bouchard, I De Leon, E Karimi, and R W Boyd, Optical Materials Express 5, 2798 (2015).
  • Observation of quantum recoherence of photons by spatial propagation, F Bouchard, J Harris, H Mand, N Bent, E Santamato, R W Boyd, and E Karimi, Scientific Reports 5, 15330 (2015).
  • Experimental realization of quantum tomography of photonic qudits via symmetric informationally complete positive operator-valued measures, N Bent, H Qassim, A A Tahir, D Sych, G Leuchs, L L Sánchez-Soto, E Karimi, and R W Boyd, Physical Review X 5, 041006 (2015).
  • Q-plate enabled spectrally diverse orbital-angular-momentum conversion for stimulated emission depletion microscopy, L Yan, P Gregg, E Karimi, A Rubano, L Marrucci, R W Boyd, and S Ramachandran, Optica 2, 900 (2015).
  • Dynamics of laser-induced radial birefringence in silver-doped glasses, A Ahangary, F Bouchard, E Santamato, E Karimi, and H R Khalesifard, Optics Letters 40, 4062 (2015).
  • Real-time imaging of spin-to-orbital angular momentum hybrid remote state preparation, M Erhard, H Qassim, H Mand, E Karimi, and R W Boyd, Physical  Review A 92, 022321 (2015).
  • Structured Quantum Waves, J. Harris, V Grillo, E Mafakheri, G C Gazzadi, S Frabboni, R W Boyd, and E Karimi, Nature Physics 11, 629 (2015).
  • Quantum walks and quantum simulation of wavepacket dynamics with twisted photons, F Cardano, F Massa, H Qassim, E Karimi, S Slussarenko, D Paparo, C de Lisio, F Sciarrino, E Santamato, R W Boyd, L Marrucci, Science Advances 1, e1500087 (2015).
  • Real-time imaging of photonic quantum teleportation, E Karimi, M Erhard, H Mand, H Qassim, R W Boyd, SPIE Newsroom February (2015).
  • Q-Plates as higher order polarization controllers for orbital angular momentum modes of fiber, P Gregg, M Mirhosseini, A Rubano, L Marrucci, E Karimi, R W Boyd and S Ramachandran, Optics Letters 40, 1729 (2015).
  • 4 X 20 Gbit/s mode division multiplexing over free space using vector modes and a q-plate mode (de)multiplexer, G Milione, M P J Lavery, H Huang, Y Ren, G Xie, T An Nguyen, E Karimi, L Marrucci, D A Nolan, R R Alfano, A E Willner, Optics Letters 40, 1980 (2015).
  • Experimental measurement of the self-healing of the spatially inhomogeneous states of polarization of radially and azimuthally polarized vector Bessel beams, G Milione, A Dudley, T An Nguyen, O Chakraborty, E Karimi, A Forbes, R R Alfano,  Journal of Optics 17 035617 (2015) [PDF].
  • Observation of optical polarization Möbius strips, T Bauer, P Banzer, E Karimi, S Orlov, A Rubano, L Marrucci, E Santamato, R W Boyd, G Leuchs Science 347, 964 (2015).
  • Holographic Generation of Highly Twisted Electron Beams, V Grillo, G C Gazzadi, E Mafakheri, S Frabboni, E Karimi and R W Boyd, Physical Review Letters, 114, 034801 (2015). [PDF].
  • Ten years of Nature Physics: Slowly but surely, E Karimi and R W Boyd, Nature Physics 11, 15 (2015) [PDF].


  • Achromatic orbital angular momentum generator, F Bouchard, H Mand, M Mirhosseini, E Karimi, and R W Boyd New Journal of Physics 16, 123006 (2014) [PDF].
  • Optical spin-to-orbital angular momentum conversion in ultra-thin metasurfaces with arbitrary topological charges, F Bouchard, I De Leon, S A Schulz, J Upham, E Karimi, and R W Boyd Applied Physics Letters,  105, 101905 (2014). [PDF] .
  • Radial quantum number of Laguerre-Gauss modes, E Karimi, R W Boyd, P de la Hoz, H de Guise, J Řeháček, Z Hradil, A Aiello, G Leuchs, and L L Sánchez-Soto, Physical Review A 89, 032122 (2014). [PDF]
  • Generating optical orbital angular momentum at visible wavelengths using a plasmonic metasurface, E Karimi, S A Schulz, I De Leon, H Qassim, J Upham and R W Boyd, Light: Science & Applications 3, e167 (2014). [PDF
  • Limitations to the determination of a Laguerre-Gauss spectrum via projective, phase-flattening measurement, H Qassim, F M Miatto, J P Torres, M J Padgett, E Karimi, and R W Boyd, Journal of the Optical Society of America B 31, A20 (2014). [PDF
  • Hardy’s paradox tested in the spin-orbit Hilbert space of single photons, E Karimi, F Cardano, M Maffei, C de Lisio, L Marrucci, R W Boyd, and E Santamato, Physical Review A 89, 032122 (2014). [PDF
  • Generation of Nondiffracting Electron Bessel Beam, V Grillo, E Karimi, G C Gazzadi, S Frabboni, M R Dennis, and R W Boyd, Physical Review X 4, 011013 (2014). [PDF
  • Highly efficient electron vortex beams generated by nanofabricated phase holograms, V Grillo, G C Gazzadi, E Karimi, E Mafakheri, R W Boyd, and S Frabboni, Applied Physics Letters,  104, 043109 (2014). [PDF
  • Exploring the quantum nature of the radial degree of freedom of a photon via Hong-Ou-Mandel interference, E Karimi, D Giovannini, E Bolduc, N Bent, F M Miatto, M J Padgett, and R W Boyd, Physical Review A,  89, 013829 (2014). [PDF]
  • Generation of a spin-polarized electron beam by multipoles magnetic fields, E Karimi, V Grillo, R W Boyd, E Santamato, Ultramicroscopy  138,  22 (2014). [PDF]

The SQO Impact Shots Policy

The publication of any works in which the SQO group has been actively involved must be amended by the following:

  • Co-authors must share an amount of shots corresponding to the impact factor of the journal in which the work was published.
  • All shots associated with a certain publication must be of the same spirit.
  • The first-listed individual of the SQO authors of a given publication must pay for the shots and attribute a spirit to the publication’s shots.
  • The shots must be taken within the two months following the acceptance of the work.
  • In the event where the work was published in a journal which, at the time, had no impact factor, the shots must be taken within two months following the release of the journal’s impact factor.
  • In the event where the work is highlighted by media outlet or the journal itself, then the author must pay for an amount of shots corresponding to the amount of times the work has highlighted.
    • The number of shots attributed to such a scenario cannot exceed
      • Twice the impact factor for low-impact journals (Impact factor less than 20).
      • The impact factor for high-impact journals (Impact factor higher or equal to 20).