Fano resonance from a one-dimensional topological photonic crystal
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2021
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| Subjects: | |
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| _version_ | 1866916282739195904 |
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| author | Gu, Linpeng Wang, Binbin Yuan, Qingchen Fang, Liang Zhao, Qiang Gan, Xuetao Zhao, Jianlin |
| author_facet | Gu, Linpeng Wang, Binbin Yuan, Qingchen Fang, Liang Zhao, Qiang Gan, Xuetao Zhao, Jianlin |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2108_00181 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Fano resonance from a one-dimensional topological photonic crystal Gu, Linpeng Wang, Binbin Yuan, Qingchen Fang, Liang Zhao, Qiang Gan, Xuetao Zhao, Jianlin Optics 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. |
| title | Fano resonance from a one-dimensional topological photonic crystal |
| topic | Optics |
| url | https://arxiv.org/abs/2108.00181 |