TITLE:
Analysis of Microdisk/Microring’s Surface Roughness Effect by Orthogonal Decomposition
AUTHORS:
Chengle Sui, Qiangmin Wang, Shilin Xiao, Pingqing Li
KEYWORDS:
Orthogonal Decomposition; Micro-resonator; Surface Roughness Effect
JOURNAL NAME:
Optics and Photonics Journal,
Vol.3 No.2B,
July
23,
2013
ABSTRACT: Application of micro-resonator is limited by different
types of surface inhomogeneity. The 1-th derivative of inhomogeneity (i.e. Δrˊ(φ)) affects the wave transport as well as the height of
inhomogeneity (i.e. Δrˊ(φ)). A method based on orthogonal decomposition is proposed to
analysis both scattering mechanism respectively. Then surface roughness effect
on Q-factor of micro-disk waveguide gallery mode (WGM) resonator is
investigated with our method and the analysis fits well with FDTD simulation
results.