Media 2: Zone-plate diffraction patterns in gradient-index media José Manuel Rivas-Moscoso Carlos Gómez-Reino María Victoria Pérez 10.1364/OE.11.000081.m002 https://opticapublishing.figshare.com/articles/media/Media_2_Zone-plate_diffraction_patterns_in_gradient-index_media/4930967 Originally published in Optics Express on 27 January 2003 (oe-11-2-81) 2003-01-27 00:00:00 oe gradient-index media diffraction Zone-plate Optics Express pattern 27 January 2003