EM analysis of a conducting scatterer in optic dielectric waveguide

Author

Chou, Chun-Ting ; Jeng, Shyh-Kang

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

16

Issue

6

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

1107

Lastpage

1112

Abstract

A method to compute the scattered field of curved mirrors and gratings in a dielectric slab waveguide is proposed. In contrast to the beam propagation method (BPM) for this kind of problems, the method of moment is adopted. By introducing the dyadic Green´s function in a slab waveguide, the electric field integral equations for induced current distribution on the conducting obstacles are derived. To improve the computational efficiency, the modified Green´s function is incorporated into the computation program. With this study, the effects of grooves of gratings and the finite extent of the mirrors in dielectric waveguides can be investigated in more detail

Keywords

Green´s function methods; dielectric waveguides; diffraction gratings; electromagnetic wave scattering; electromagnetism; light scattering; mirrors; optical waveguide theory; EM analysis; computation program; conducting obstacles; conducting scatterer; curved gratings; curved mirrors; dielectric waveguides; dyadic Green´s function; electric field integral equations; induced current distribution; optic dielectric waveguide; scattered field; slab waveguide; Dielectrics; Gratings; Green´s function methods; Integral equations; Mirrors; Moment methods; Optical propagation; Optical scattering; Optical waveguides; Slabs;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.681473

Filename

681473