https://doi.org/10.1140/epjst/e2014-02238-3
Regular Article
Vectorial whispering gallery mode solvers based on straight waveguide modes
Department of Electrical and Computer Engineering, University of Victoria, Victoria, BC, V8P 5C2, Canada
a e-mail: taolu@ece.uvic.ca
b Figure 1 was prepared by Xuan Du.
Received: 9 June 2014
Revised: 4 August 2014
Published online: 6 October 2014
In this paper, whispering gallery mode solvers based on a set of corresponding straight waveguide modes are proposed. The solvers project whispering gallery modes onto a linear combination of straight waveguide modes through a cavity residual operator eigensolution formalism and direct straight waveguide expansion procedures. With these implementations, a perfectly matched layer can be imposed at the cavity computation window edges automatically and optical properties of plain and metal coated silica microtoroids can be analyzed from a novel viewpoint. Additionally, the techniques can be employed in cavity mode matching methods for the modelling of cavities that strongly scatter light.
© EDP Sciences, Springer-Verlag, 2014
