Publication: IEICE TRANSACTIONS on Electronics Publication Date: 1993/11/25 Vol. E76-CNo. 11pp. 1695-1697 Type of Manuscript: LETTER Category: Electromagnetic Theory Keyword: beam-propagation method, dielectric hollow waveguide,
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 1992/09/25 Vol. E75-CNo. 9pp. 1093-1095 Type of Manuscript: LETTER Category: Electromagnetic Theory Keyword: opto-electronics, electromagnetic theory,