Ming-Chuan YangJIA-HAN LIHua-Tsai ChenKevin J. Webb*2022-01-032022-01-0320031-55752-749-0https://doi.org/10.1109/QELS.2003.237868https://scholars.lib.ntu.edu.tw/handle/123456789/590926Near-field functional field transformation structuresconference paper10.1109/QELS.2003.237868