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

fYear

2014

fDate

26-28 Aug. 2014

Firstpage

141

Lastpage

143

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Mathematical Methods in Electromagnetic Theory (MMET), 2014 International Conference on

Conference_Location

Dnipropetrovsk

Print_ISBN

978-1-4799-6863-3

Type

conf

DOI

10.1109/MMET.2014.6928714

Filename

6928714