Kevin J. WebbMing-Chuan YangJIA-HAN LIHua-Tsai ChenSerge MininShun Lien ChuangGabriel R. Cueva2022-01-032022-01-0320051-55752-797-0https://doi.org/10.1364/FIO.2005.FWE1https://scholars.lib.ntu.edu.tw/handle/123456789/590920Irregular field transformation structuresconference paper10.1364/FIO.2005.FWE1