Surface Roughness Effect on Q-Factor of Ge Whispering Gallery Mode Microdisk Resonator

Seongjae Cho,Sukmo Koo,Kyungwan Yoo,Evan Pickett,Namkyoo Park,Theodore I. Kamins,Byung-Gook Park,James S. Harris

Surface Roughness Effect on Q-Factor of Ge Whispering Gallery Mode Microdisk Resonator

2011

Seongjae Cho
Sukmo Koo
Kyungwan Yoo
Evan Pickett
Namkyoo Park
Theodore I. Kamins
Byung-Gook Park
James S. Harris

In this paper, surface roughness effect on Q-factor on Ge whispering gallery mode microdisk resonator is thoroughly investigated by 2D and 3D FDTD simulations with variations on roughness indices.

Keywords:

Q factor
Surface roughness
Physical vapor deposition
Refractive index
Resonator
Whispering-gallery wave
Optical fiber
Surface finish
Materials science
Optics
Germanium

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