Back to Search Start Over

Boundary rounding effect in the hexagonal and oval two-dimensional optical microcavity.

Boundary rounding effect in the hexagonal and oval two-dimensional optical microcavity.

Authors :
Zhang, Canran
Dai, Jun
Source :
Modern Physics Letters B. 3/20/2021, Vol. 35 Issue 8, pN.PAG-N.PAG. 10p.
Publication Year :
2021

Abstract

In this paper, the boundary rounding effects of two types of non-circular GaN microcavity system are numerically simulated by the finite element method. When the rounding parameter s of the hexagonal microcavity decreases, the six corners of the regular hexagon are gradually rounded, the results show that the optical mode gradually changes from the hexagonal whispering-gallery mode (WGM) to the perfect circular WGM, and the quality factor of the modes increases correspondingly. For the oval microcavity, the structure parameter δ increases from 0 to 1 when the oval microcavity gradually changes from a stadium cavity to a circular cavity. The simulation results show that the quality factor increases with δ , and the optical mode changes from high-leak mode to WGM. Our results demonstrate the effect of the boundary rounding on the mode pattern and quality factor in hexagonal and oval microcavities. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
02179849
Volume :
35
Issue :
8
Database :
Academic Search Index
Journal :
Modern Physics Letters B
Publication Type :
Academic Journal
Accession number :
149378334
Full Text :
https://doi.org/10.1142/S0217984921501463