Title :
Singularity expansion method for modeling of transients in dynamic open resonators and waveguides
Author :
Sakhnenko, Nataliya K.
Author_Institution :
Inst. of Radio Phys. & Electron., Kharkiv Nat. Univ. of Radio Electron., Kharkiv, Ukraine
Abstract :
Accurate analysis of electromagnetic fields evolution in a whispering gallery (WG) mode resonator with time dependent material parameters and in a circular waveguide with transient core is presented. The excited fields are described by means of a rigorous mathematical approach that is based on an analytical solution in the Laplace transform domain and accurate evaluation of residues at singular points of the obtained functions. Transient response of waveguide and resonator modes on a sole time switching material parameters as well as on a packet of pulses is considered.
Keywords :
Laplace transforms; circular waveguides; resonators; transient response; whispering gallery modes; Laplace transform domain; circular waveguide; dynamic open resonators; electromagnetic fields evolution; singularity expansion method; sole time switching material parameters; time dependent material parameters; transient core; whispering gallery mode resonator; Materials; Modulation; Optical resonators; Optical waveguides; Refractive index; Transient analysis; Microresonators; dynamic structures; time-varying media;
Conference_Titel :
Mathematical Methods in Electromagnetic Theory (MMET), 2014 International Conference on
Conference_Location :
Dnipropetrovsk
Print_ISBN :
978-1-4799-6863-3
DOI :
10.1109/MMET.2014.6928714
