Related Experiment Video
Updated: May 14, 2026

Fabrication of Silica Ultra High Quality Factor Microresonators
Published on: July 2, 2012
High-Q modes in defected microcircular resonator confined by metal layer for unidirectional emission
Qi-Feng Yao1, Yong-Zhen Huang, Jian-Dong Lin
1State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083, China.
Abstract:
Defected circular resonators laterally confined by a metal layer with a flat side as an emitting window are numerically investigated based on the boundary element method for realizing unidirectional emission microlasers. The results indicate that Fabry-Pérot (FP) modes become high Q confined modes in the defected circular resonator with a metallic layer. The mode coupling between the FP mode and chaotic-like mode can result in high Q confined mode for unidirectional emission with a narrow far field pattern.
Related Concept Videos
Standing Waves in a Cavity
Biasing of Metal-Semiconductor Junctions
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
