Rik Harbers, Nikolaj Moll, et al.
Journal of the Optical Society of America A: Optics and Image Science, and Vision
Paper
Analytical calculation of the Q factor for circular-grating microcavities
Abstract
An exact and compact analytical formalism has been developed to calculate the Q factor for circular Bragg resonators. The electromagnetic fields, energy, and power flow have been expressed analytically relying on the transfer matrix coefficients. The Q factor has been derived for both TM and TE polarizations. The proposed formalism is then compared with two numerical methods. © 2007 Optical Society of America.