Fano Resonances from Quadrupole-dipole Split Mode Interference in Photonic Crystal Waveguide-single-cavity Structure
Yin-bing An, Tao Fu, Zheng-biao Ouyang
Available Online July 2019.
- https://doi.org/10.2991/eee-19.2019.17How to use a DOI?
- Fano resonance, Photonic crystal, Waveguide, Cavity, Mode split
- In this paper, a waveguide-single-cavity structure in a square-lattice photonic crystal is proposed to generate Fano resonances by the interference of two split modes in the structure with a rectangle defect column in the cavity. Through analyzing the band map of the modes in the bandgap region, Fano resonances with different line shape are found by tuning the parameters of the defect column. The results show that the bright and dark modes for Fano resonances are controllable by the parameters of the defect cavity simultaneously. The Q factor of Fano modes increases with the dark mode going farer from the bright mode and an ultra-high value 106 of Q is obtained. These Fano modes can be applied in many optical devices, such as ultra-narrow filters, switch, and sensors.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Yin-bing An AU - Tao Fu AU - Zheng-biao Ouyang PY - 2019/07 DA - 2019/07 TI - Fano Resonances from Quadrupole-dipole Split Mode Interference in Photonic Crystal Waveguide-single-cavity Structure BT - 2nd International Conference on Electrical and Electronic Engineering (EEE 2019) PB - Atlantis Press SP - 95 EP - 99 SN - 2352-5401 UR - https://doi.org/10.2991/eee-19.2019.17 DO - https://doi.org/10.2991/eee-19.2019.17 ID - An2019/07 ER -