Chang, C.K.C.K.ChangLin, D.Z.D.Z.LinChang, Y.C.Y.C.ChangLin, M.W.M.W.LinYeh, J.T.J.T.YehLiu, J.M.J.M.LiuYeh, C.S.C.S.YehCHIH-KUNG LEE2020-04-282020-04-282007https://scholars.lib.ntu.edu.tw/handle/123456789/486227Enhancing intensity of emitted light from a ring by incorporating a circular groovejournal article10.1364/OE.15.0150292-s2.0-36249031581https://www.scopus.com/inward/record.uri?eid=2-s2.0-36249031581&doi=10.1364%2fOE.15.015029&partnerID=40&md5=ebc70cf0a5f939d46abf6db0067dd2f2