Navarro-Cía, M. Beruete, M. Sorolla, M. Campillo, I. Media 2: Negative refraction in a prism made of stacked subwavelength hole arrays Originally published in Optics Express on 21 January 2008 (oe-16-2-560) oe;media;21 January 2008;Optics Express;prism;subwavelength hole arrays;refraction 2008-01-21
    https://opticapublishing.figshare.com/articles/media/Media_2_Negative_refraction_in_a_prism_made_of_stacked_subwavelength_hole_arrays/4938374
10.1364/OE.16.000560.m002