Rodrigo, José A. Alieva, Tatiana Calvo, María L. Media 2: Programmable two-dimensional optical fractional Fourier processor Originally published in Optics Express on 30 March 2009 (oe-17-7-4976) 30 March 2009;media;oe;Optics Express;Fourier processor;Programmable 2009-03-30
    https://opticapublishing.figshare.com/articles/media/Media_2_Programmable_two-dimensional_optical_fractional_Fourier_processor/4940612
10.1364/OE.17.004976.m002