Davoyan, Arthur R. Mahmoud, Ahmed M. Engheta, Nader Media 4: Optical isolation with epsilon-near-zero metamaterials Originally published in Optics Express on 11 February 2013 (oe-21-3-3279) Optics Express;epsilon-near-zero metamaterials;media;11 February 2013;Optical;oe;isolation 2013-02-11
    https://opticapublishing.figshare.com/articles/media/Media_4_Optical_isolation_with_epsilon-near-zero_metamaterials/4946519
10.1364/OE.21.003279.m004