Title :
Analysis of modes in a freestanding microsquare resonator by 3-D finite-difference time-domain simulation
Author :
Chen, Qin ; Huang, Yong-Zhen ; Guo, Wei-Hua ; Yu, Li-Juan
Author_Institution :
State Key Lab. on Integrated Optoelectron., Chinese Acad. of Sci., Beijing, China
fDate :
7/1/2005 12:00:00 AM
Abstract :
Modes in a microsquare resonator slab with strong vertical waveguide consisting of air/semiconductor/air are analyzed by three-dimensional (3-D) finite-difference time-domain simulation, and compared with that of two-dimensional (2-D) simulation under effective index approximation. Mode frequencies and field distributions inside the resonator obtained by the 3-D simulation are in good agreement with those of the 2-D approximation. However, field distributions at the boundary of the resonator obtained by 3-D simulation are different from that of the 2-D simulation, especially the vertical field distribution near the boundary is great different from that of the slab waveguide, which is used in the effective index approximation. Furthermore the quality factors obtained by 3-D simulation are much larger than that by 2-D simulation for the square resonator slab with the strong vertical waveguide.
Keywords :
Q-factor; finite difference time-domain analysis; micro-optics; microcavities; optical resonators; optical waveguide theory; 3-D finite difference time-domain simulation; field distribution; microsquare resonator; mode frequency; modes; quality factors; slab waveguide; two-dimensional effective index approximation; vertical waveguide; Analytical models; Finite difference methods; Frequency; Microcavities; Optical resonators; Optical waveguides; Semiconductor waveguides; Slabs; Time domain analysis; Two dimensional displays; FDTD methods; modeling; optical resonator;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2005.848900
