Gion Sialm, Daniel Erni, et al.
Opt. Eng.
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.
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