Conference paper
Quality factor enhancement in photonic crystal slabs by manipulation of the ring of exceptional points
Department of Electrical Engineering, Technical University of Denmark1
Electromagnetic Systems, Department of Electrical Engineering, Technical University of Denmark2
Department of Photonics Engineering, Technical University of Denmark3
Quantum and Laser Photonics, Department of Photonics Engineering, Technical University of Denmark4
Presently, we investigate the influence of the extent of a ring of exceptional points on the Q-factor of three-dimensional photonic crystal slabs. By changing the thickness of the slab, the extent of the ring of exceptional points is varied, allowing us to recover the Dirac cones in open, non-Hermitian systems.
In this case, three bound states in the continuum are exhibited close to the Gamma-point. For an optimized thickness of the slab, the associated Q-factors are found to grow rapidly with the size of the slab. The present results may lead to novel, small area and high Q-factor photonic crystal surface-emitting lasers.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2017 |
| Pages: | 11-12 |
| Proceedings: | 17th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD17) |
| ISBN: | 1509053239 , 1509053247 , 9781509053230 and 9781509053247 |
| ISSN: | 21583242 and 21583234 |
| Types: | Conference paper |
| DOI: | 10.1109/NUSOD.2017.8009966 |
| ORCIDs: | Kaminski, Piotr Marek , Breinbjerg, Olav , Mørk, Jesper and Arslanagic, Samel |
Atmospheric modeling Dirac cones Dispersion Eigenvalues and eigenfunctions Photonic crystals Q-factor Slabs Surface emitting lasers bound states exceptional point exceptional points high Q-factor photonic crystal surface-emitting lasers open nonHermitian systems photonic crystals quality factor enhancement slab thickness small area high Q-factor PhC lasers surface emitting lasers three-dimensional photonic crystal slabs Γ-point
