We propose to approximate a spherically symmetric Bragg resonator in an onionlike geometry. We develop a transfer-matrix theory for calculation of the quality factors and analyze the effect of the onion stem on cavity Q factors. We find that it is possible to achieve significant inhibition of spontaneous emission in an onion resonator with omnidirectional cladding layers.
© 2003 Optical Society of America
Yong Xu, Wei Liang, Amnon Yariv, J. G. Fleming, and Shawn-Yu Lin, "High-quality-factor Bragg onion resonators with omnidirectional reflector cladding," Opt. Lett. 28, 2144-2146 (2003)