title: Cylindrical beam propagation modelling of perturbed whispering-gallery mode microcavities.
abstract: We simulate light propagation in perturbed whispering-gallery mode microcavities using a two-dimensional finite-difference beam propagation method in a cylindrical coordinate system. Optical properties of whispering-gallery microcavities perturbed by polystyrene nanobeads are investigated through this formulation. The light perturbation as well as quality factor degradation arising from cavity ellipticity are also studied.
authors: Mohammad Amin Cheraghi
authors: MA
authors: Shirazi
authors: Wenyan
authors: W
authors: Yu
authors: Serge
authors: S
authors: Vincent
authors: Tao
authors: T
authors: Lu