Experimental demonstration of merging quasi-BICs in photonic crystal slabs
Merging bound states in the continuum (BICs) and avoided crossing of resonances (ACR) are promising theoretical approaches to greatly enhance the quality (Q) factors of quasi-BICs in reciprocal space. We observe the phenomena of merging BICs and ACR in millimeter-sized C4v symmetry photonic crystal structures. The ACR at Γ point is obtained in the variation of the structural parameter. In off-Γ region, the merging BICs at arbitrary locations are observed in the experimental measurements. The findings offer a pathway to high-performance photonic devices with potential applications in optoelectronics and microwave experimentation.
Authors
- Yuting Yang (ORCID: https://orcid.org/0000-0003-3808-3940)
- Xiaopeng Shen (ORCID: https://orcid.org/0000-0003-1836-1878)
- Zheng-Da Hu (ORCID: https://orcid.org/0000-0001-5655-3331)
- Shiyu Liu (ORCID: https://orcid.org/0000-0002-7901-7918)
- Wenjun Li (ORCID: https://orcid.org/0000-0002-5176-6386)
- Jicheng Wang (ORCID: https://orcid.org/0000-0003-2814-2302)
- Bingtao Li
- Yun Zhu (ORCID: https://orcid.org/0009-0008-0095-2040)
Institutions
- Jiangnan University (CN)
- Chinese Academy of Sciences (CN)
- China University of Mining and Technology (CN)
- Suzhou Institute of Nano-tech and Nano-bionics (CN)
- Southeast University (CN)
Publication Details
- Journal
- Materials & Design
- Published
- 2024-08-20
- DOI
- https://doi.org/10.1016/j.matdes.2024.113263
- Citations
- 9
- Primary Topic
- Photonic Crystals and Applications
- Type
- article
- Field-Weighted Citation Impact
- 3.04
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Jiangsu Province
- Laboratory of Nano Devices and Applications, Chinese Academy of Sciences
- National Key Research and Development Program of China Stem Cell and Translational Research