A. Alonso, Miguel Media 9: Wigner functions in optics: describing beams as ray bundles and pulses as particle ensembles Originally published in Advances in Optics and Photonics on 31 December 2011 (aop-3-4-272) pulse;media;31 December 2011;function;Advance;optic;Photonics;particle ensembles;ray bundles;aop;Optics;Wigner 2011-12-31
    https://opticapublishing.figshare.com/articles/media/Media_9_Wigner_functions_in_optics_describing_beams_as_ray_bundles_and_pulses_as_particle_ensembles/4910840
10.1364/AOP.3.000272.m009