Abstract

Models of two types of nonlinear optical process in spherical microcavities are presented. In the first type the fields at a single frequency cause a spatially varying perturbation of the real or imaginary part of the refractive index. The effects of this variation are then modeled by using a time-independent perturbation method (TIPM)^1,2 and a method for computing an effective-average refractive index³ for each mode. The shift in the frequency of a morphology-dependent resonance (MDR) is proportional to the integral (over the volume of the sphere) of the product of the perturbation and the intensity of the output mode.

© 1993 Optical Society of America