@article{weko_10519_1, author = "Morimoto,Keita and Iguchi,Akito and Tsuji,Yasuhide", title = "Novel Scattering Operator for Arbitrary Finite Element Models in Optical Waveguides", journal = "JOURNAL OF LIGHTWAVE TECHNOLOGY", year = "2021", volume = "39", number = "9", pages = "2941--2948" }