@inproceedings{2c140c4ac61842098deb54391c825569,
title = "Highly Sensitive Terahertz Metasurface Biosensor Based on Quasi-bound States in the Continuum",
abstract = "Terahertz (THz) metasurface sensing has attracted much attention in the field of highly sensitive biosensor due to its unique advantages of non-invasive and label-free detection. However, the existing techniques is still limited by low sensing sensitivity. Here we proposed a metasurface biosensor based on bound states in the continuum (BIC) for achieving highly sensitive detection of analytes. The metasurface consists of two metal open-ring resonators with opposite openings. By breaking the C2 symmetry of the metal resonators, the non-radiating BIC state can be tuned into Fano shaped q-BIC resonance with an ultra-high quality factor, which can greatly enhance light-analyte interaction. The designed metasurface shows a sensing sensitivity of 326 GHz/RIU, which significantly improves the use of THz biomolecular sensing technology for detecting low-concentration analytes.",
keywords = "Bound states in the continuum, Metasurface, Refractive index sensing, Terahertz",
author = "Shulin Xue and Chenglin Yang and Yifan Zhao and Liuyang Zhang",
note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.; China National Conference on Terahertz Biophysics, CTB 2025 ; Conference date: 21-02-2025 Through 23-02-2025",
year = "2025",
doi = "10.1007/978-981-96-4886-3\_34",
language = "英语",
isbn = "9789819648856",
series = "Springer Proceedings in Physics",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "227--231",
editor = "Chao Chang and Feng Qi and Liangliang Zhang and Lei Hou",
booktitle = "Proceedings of the 2025 China National Conference on Terahertz Biophysics - CTB 2025",
}