Title :
Modelling of radiation field excited on sharp waveguide discontinuities by numerical and semi-analytical methods
Author :
Romanova, Elena A. ; Gaal, Szabolcs B.
Author_Institution :
Saratov State Univ., Russia
Abstract :
Propagation of radiation field excited on a step-like discontinuity of dielectric slab waveguide is considered by using two different techniques: the Finite-Difference Beam Propagation Method and the Green´s Function Method. Comparison of these techniques enables to evaluate approximations used in the FD-BPM as well as the truncation errors and influence of interface conditions.
Keywords :
Green´s function methods; dielectric waveguides; finite difference methods; waveguide discontinuities; waveguide theory; FD-BPM; Green´s function method; dielectric slab waveguide; finite-difference beam propagation method; interface conditions; numerical methods; radiation field; semi-analytical methods; sharp waveguide discontinuities; step-like discontinuity; truncation errors; Dielectrics; Finite difference methods; Green´s function methods; Integral equations; Light scattering; Nonuniform electric fields; Partial differential equations; Slabs; Waveguide components; Waveguide discontinuities;
Conference_Titel :
Mathematical Methods in Electromagnetic Theory, 2002. MMET '02. 2002 International Conference on
Conference_Location :
Kiev, Ukraine
Print_ISBN :
0-7803-7391-X
DOI :
10.1109/MMET.2002.1106873
