基于耦合开口方环共振空腔的可控法诺共振研究
发布时间：2018-12-07 14:55
【摘要】：基于表面等离子激元理论与金属-介质-金属波导结构提出一个由开口方环共振空腔、挡板及MIM波导组成的波导结构,并使用有限元方法系统地研究了该结构的透射特性.仿真计算结果表明:该结构可以产生法诺共振现象,其共振波长可以通过改变开口方环空腔的长度及开口大小进行调节,该结构敏感度可达1 600nm/RIU,品质因数为1.31×10~5.此外,通过调整方环共振空腔上开口的位置,在波导中产生了双重法诺共振现象,其敏感度可达1 700nm/RIU,品质因数为8.3×10~4.该结构有望在光学集成回路,尤其是纳米生物传感器方面得到比较广泛的应用.
[Abstract]:Based on the surface plasmon theory and the metal-dielectric metal waveguide structure, a waveguide structure consisting of an open square ring resonant cavity, a baffle and a MIM waveguide is proposed. The transmission characteristics of the structure are systematically studied by using the finite element method. The simulation results show that the structure can produce Farno resonance, and its resonance wavelength can be adjusted by changing the length and opening size of the open square ring cavity. The sensitivity of the structure is 1 600 nm / R IU.The quality factor is 1. 31 脳 10 ~ (5). In addition, by adjusting the position of the opening in the square ring resonator cavity, a double Farino resonance phenomenon is produced in the waveguide. Its sensitivity can reach 1 700 nm / r RIU.The quality factor is 8. 3 脳 10 ~ (4). The structure is expected to be widely used in optical integrated circuits, especially in nano biosensors.
【作者单位】： 兰州大学信息科学与工程学院现代通信技术研究所;
【基金】：国家自然科学基金重点项目(No.61631007) 中央高校基本科研业务费专项资金(兰州大学)(No.lzujbky-2015-K7)资助~~
【分类号】：TN252
本文编号：2367370
[Abstract]:Based on the surface plasmon theory and the metal-dielectric metal waveguide structure, a waveguide structure consisting of an open square ring resonant cavity, a baffle and a MIM waveguide is proposed. The transmission characteristics of the structure are systematically studied by using the finite element method. The simulation results show that the structure can produce Farno resonance, and its resonance wavelength can be adjusted by changing the length and opening size of the open square ring cavity. The sensitivity of the structure is 1 600 nm / R IU.The quality factor is 1. 31 脳 10 ~ (5). In addition, by adjusting the position of the opening in the square ring resonator cavity, a double Farino resonance phenomenon is produced in the waveguide. Its sensitivity can reach 1 700 nm / r RIU.The quality factor is 8. 3 脳 10 ~ (4). The structure is expected to be widely used in optical integrated circuits, especially in nano biosensors.
【作者单位】： 兰州大学信息科学与工程学院现代通信技术研究所;
【基金】：国家自然科学基金重点项目(No.61631007) 中央高校基本科研业务费专项资金(兰州大学)(No.lzujbky-2015-K7)资助~~
【分类号】：TN252
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