Title :
Mode Simulation for Midinfrared Microsquare Resonators With Sloped Sidewalls and Confined Metals
Author :
Li, Jing ; Yang, Yue-De ; Huang, Yong-Zhen
Author_Institution :
State Key Lab. on Integrated Optoelectron., Chinese Acad. of Sci., Beijing, China
fDate :
4/1/2010 12:00:00 AM
Abstract :
Mode characteristics for midinfrared microsquare resonators with sloped sidewalls and confined metal layers are investigated by finite-difference time-domain (FDTD) techniques. For a microsquare with a side length of 10 ??m, the mode quality (Q) -factors of 8329, 4772, and 2053 are obtained for TM5,7 mode at wavelength 7.1 ??m by three-dimensional FDTD simulations, as the tilting angles of the side walls are 90??, 88??, and 86??, respectively. Furthermore, microsquare resonators laterally surrounded by SiO2 and metal layers are investigated by the two-dimensional FDTD technique for the metal layers of Au, Ti-Au, Ag-Au, and Ti-Ag-Au, respectively.
Keywords :
finite difference time-domain analysis; gold alloys; micro-optics; optical resonators; silicon compounds; silver alloys; titanium alloys; 3D FDTD simulations; SiO2; TiAgAu; confined metal layers; finite difference time domain techniques; midinfrared microsquare resonators; mode quality factors; sloped sidewalls; tilting angles; wavelength 7.1 mum; Finite-difference time-domain (FDTD) simulation; midinfrared microresonators; mode $Q$ -factors;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2040982
