| 新月十字架纳米结构中多Fano共振的产生和高FOM共振 |
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| 引用本文： | 侯艺博，霍义萍，姜雪莹，等. 新月十字架纳米结构中多Fano共振的产生和高FOM共振[J]. 光电工程，2020，47(11)：200010. doi: 10.12086/oee.2020.200010 |
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| 作者姓名： | 侯艺博 霍义萍 姜雪莹 周辰 郭懿圆 牛启强 何倩 郝祥祥 |
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| 作者单位： | 陕西师范大学物理学与信息技术学院，陕西 西安 710062 |
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| 基金项目： | 国家自然科学基金资助项目(11604198) |
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| 摘 要： | 金属表面等离激元具有许多新颖的光学特性和重要的应用，并且也是当今研究的热点。本文采用有限元方法研究了由新月和十字架组成的新月十字架纳米结构。通过改变结构参数来打破结构对称性，可以产生新的等离激元磁模式和多重Fano共振。同时，通过对称地改变两棒之间的夹角，FOM值可以达到61。我们的结构在多波长传感器、超灵敏生物传感器、表面增强光谱和慢光传输等领域有着重要的应用。
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| 关 键 词： | 多Fano共振 表面等离激元 品质因数 |
| 收稿时间： | 2020-01-06 |
| 修稿时间： | 2020-03-31 |
Generation of multiple Fano resonance and high FOM resonance based on the crescent cross nanostructure |
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| Hou Y B, Huo Y P, Jiang X Y, et al. Generation of multiple Fano resonance and high FOM resonance based on the crescent cross nanostructure[J]. Opto-Electron Eng, 2020, 47(11): 200010. doi: 10.12086/oee.2020.200010 |
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| Authors: | Hou Yibo Huo Yiping Jiang Xueying Zhou Chen Guo Yiyuan Niu Qiqiang He Qian Hao Xiangxiang |
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| Affiliation: | School of Physics and Information Technology, Shaanxi Normal University, Xi'an, Shaanxi 710062, China |
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| Abstract: | Metal surface plasmon has many novel optical properties and important applications, and it is also a research hotspot. In this paper, a crescent cross (CC) nanostructure composed of a crescent and a cross is studied by the finite element method. New plasmon magnetic mode and multiple Fano resonance can be induced by breaking structure symmetry through changing structure parameters. Meanwhile, by changing the angle between the two rods symmetrically, the figure of merit (FOM) can reach 61. Our structure has important applications in the fields of multi-wavelength sensor, ultra-sensitive biosensor, surface enhanced spectroscopy, and slow light transmission. |
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| Keywords: | multiple Fano resonance surface plasmon figure of merit |
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