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Boundary rounding effect in the hexagonal and oval two-dimensional optical microcavity.
Boundary rounding effect in the hexagonal and oval two-dimensional optical microcavity.
- 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]
- Subjects :
- *QUALITY factor
*FINITE element method
Subjects
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