Q系数
不对称
实现(概率)
纳米光子学
共振(粒子物理)
计算机科学
灵敏度(控制系统)
质量(理念)
物理
电子工程
上下界
光电子学
工程类
量子力学
数学
谐振器
统计
数学分析
作者
Zhiran Liu,Yi Zhou,Zhihe Guo,Xuyang Zhao,Man Luo,Yuxiang Li,Xiang Wu
出处
期刊:Photonics
[MDPI AG]
日期:2022-11-11
卷期号:9 (11): 852-852
被引量:4
标识
DOI:10.3390/photonics9110852
摘要
Bound states in the continuum (BICs) have attracted a lot of interest in the field of nanophotonics, and provide an important physical mechanism to realize high quality (Q) factor resonance. However, in practice, manufacturing error will greatly affect the Q factor. In this paper, we propose an asymmetric metasurface supporting near merging BIC under normal incidence. Such near merging BIC can achieve a higher Q factor (>107) than common structures (Q ~ 105) with the same degree of asymmetry in the structure. Moreover, the near merging BICs also show higher surface sensitivity than other resonant modes. Our work provides a promising approach for the realization of a high-performance biosensing platform.
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