Norton, Andrew H. Martijn de Sterke, C. Media 1: Two-dimensional poling patterns for 3rd and 4th harmonic generation Originally published in Optics Express on 05 May 2003 (oe-11-9-1008) 3 rd;Two-dimensional;generation;media;oe;Optics Express;pattern;05 May 2003 2003-05-05
    https://opticapublishing.figshare.com/articles/media/Media_1_Two-dimensional_poling_patterns_for_3rd_and_4th_harmonic_generation/4931390
10.1364/OE.11.001008.m001