Experimental verification of selection rules for circularly polarized high harmonics from a solid Nariyuki Saito, Peiyu Xia, Faming Lu, Nobuhisa Ishii, Teruto Kanai and Jiro Itatani EPJ Web Conf., 205 (2019) 02021 Published online: 16 April 2019 DOI: 10.1051/epjconf/201920502021