Title :
Bragg reflection in waveguiding structure with nonperiodic radial and angular perturbation of permittivity
Author_Institution :
Dept. of Radiophys., Dnepropetrovsk Nat. Univ., Ukraine
Abstract :
In the present work oblique incidence of cylindrical waves on the waveguiding structure with two-dimensional (radial and angular) Bragg inhomogeneity of permittivity is considered. The permittivity of dielectric assumes to be presented in the form of a sum of spatial nonperiodically oscillating harmonics of perturbation. Amplitude and wavenumber of each harmonic smoothly Vary along radial coordinate. The perturbation as a function of the angular coordinate. is expressed in the form of a Fourier expansion
Keywords :
Hankel transforms; electromagnetic wave reflection; partial differential equations; permittivity; waveguide theory; Bragg reflection; Fourier expansion; Hankel functions; TE waves; TM waves; cylindrical waves; modified asymptotic method; nonperiodic perturbation; oblique incidence; phase mismatches; spatial nonperiodically oscillating harmonics; two-dimensional permittivity inhomogeneity; wave coupling; waveguiding structure; Dielectrics; Differential equations; Permittivity; Reflection; Resonance; Surface waves; Tellurium;
Conference_Titel :
4thLaser and Fiber-Optical Networks Modeling, 2002. Proceedings of LFNM 2002. International Workshop on
Conference_Location :
Kharkiv
Print_ISBN :
0-7803-7372-3
DOI :
10.1109/LFNM.2002.1014153
