Proceedings of the 2nd International Conference on Electrical and Electronic Engineering (EEE 2019)

Fano Resonances from Quadrupole-dipole Split Mode Interference in Photonic Crystal Waveguide-single-cavity Structure

Authors
Yin-bing An, Tao Fu, Zheng-biao Ouyang
Corresponding Author
Zheng-biao Ouyang
Available Online July 2019.
DOI
https://doi.org/10.2991/eee-19.2019.17How to use a DOI?
Keywords
Fano resonance, Photonic crystal, Waveguide, Cavity, Mode split
Abstract
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.

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Proceedings
2nd International Conference on Electrical and Electronic Engineering (EEE 2019)
Part of series
Advances in Engineering Research
Publication Date
July 2019
ISBN
978-94-6252-754-6
ISSN
2352-5401
DOI
https://doi.org/10.2991/eee-19.2019.17How to use a DOI?
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  -