Shen, Z. Hu, Z. J. Yuan, G. H. Min, C. J. Fang, H. Yuan, X.-C. Media 2: Visualizing orbital angular momentum of plasmonic vortices Originally published in Optics Letters on 15 November 2012 (ol-37-22-4627) media;plasmonic vortices;15 November 2012;Visualizing;Optics Letters;momentum 2012-11-15
    https://opticapublishing.figshare.com/articles/media/Media_2_Visualizing_orbital_angular_momentum_of_plasmonic_vortices/4919270
10.1364/OL.37.004627.m002