Multiple plasmon-induced transparency with extra-high FOM based on a MIM waveguide composed of stubs

Autor:	Xiangxiang Hao, Yunyan Wang, Meina Song, Qian He, Yiping Huo, Qiqiang Niu, Yiyuan Guo, Pengfei Cui
Rok vydání:	2021
Předmět:	Physics Waveguide (electromagnetism) business.industry Optoelectronics Condensed Matter Physics business Transparency (behavior) Surface plasmon polariton Mathematical Physics Atomic and Molecular Physics and Optics Plasmon
Zdroj:	Physica Scripta. 96:075505
ISSN:	1402-4896 0031-8949
Popis:	A plasmon structure based on a metal-insulator-metal (MIM) waveguide composed of three stubs (TSs) is proposed, and its transmission characteristics are studied numerically by the finite element method (FEM). The simulation results show that multiple plasmon-induced transparencies (PITs) with high transmission can be produced in the structure and can be tuned effectively. By adjusting the structure parameters, more high-order PITs with narrower window are generated. Furthermore, the proposed MIM waveguide is sensitive to the environment and the maximum values of refractive index sensitivity and figure of merit (FOM) are 1340 nm R−1IU−1 and 251/RIU, respectively. Multiple, adjustable and narrow PITs with high FOM can be induced in the proposed structure, which can be used in the fields of multi-channel filters, optical switches, storages, sensors, and so on.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0c1e088c284d310303d53825cd21b348 https://doi.org/10.1088/1402-4896/abfbff Zobrazit plný text záznamu