Du, C.-H.C.-H.DuYIH-PENG CHIOU2018-09-102018-09-102012http://www.scopus.com/inward/record.url?eid=2-s2.0-84860263294&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/372398Higher-order full-vectorial finite-difference analysis of waveguiding structures with circular symmetryjournal article10.1109/LPT.2012.2190137