Title :
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
fDate :
6/1/1998 12:00:00 AM
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;
Journal_Title :
Lightwave Technology, Journal of
