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

Volume

22

Issue

7

fYear

2010

fDate

4/1/2010 12:00:00 AM

Firstpage

459

Lastpage

461

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 TM_5,7 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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2010.2040982

Filename

5404829