YUAN LUOOh S.B.Barbastathis G.2020-07-132020-07-1320100146-9592https://www.scopus.com/inward/record.uri?eid=2-s2.0-77649215476&doi=10.1364%2fOL.35.000781&partnerID=40&md5=0aa48b00354414c68e77a1d635e5fe21https://scholars.lib.ntu.edu.tw/handle/123456789/509996journal article10.1364/OL.35.000781201953512-s2.0-77649215476