Fano resonance from a one-dimensional topological photonic crystal
Optics
2024-06-12 v1
Abstract
An ultra-compact one-dimensional topological photonic crystal (1D-TPC) is designed in a single mode silicon bus-waveguide to generate Fano resonance lineshape. The Fano resonance comes from the interference between the discrete topological boundary state of the 1D-TPC and the continuum high-order leaky mode of the bus-waveguide. Standalone asymmetric Fano resonance lineshapes are obtained experimentally in the waveguide transmission spectrum with a maximum extinction ratio of 33 dB and a slope ratio of 10 dB/nm over a broadband flat background.
Keywords
Cite
@article{arxiv.2108.00181,
title = {Fano resonance from a one-dimensional topological photonic crystal},
author = {Linpeng Gu and Binbin Wang and Qingchen Yuan and Liang Fang and Qiang Zhao and Xuetao Gan and Jianlin Zhao},
journal= {arXiv preprint arXiv:2108.00181},
year = {2024}
}