基于石墨烯等离子体六聚体的中红外频率法诺共振线形优化

Optimization of the Fano Resonance Lineshape Based on Graphene Plasmonic Hexamer in Mid-Infrared Frequencies.

作者信息

Ren Junbo, Wang Guangqing, Qiu Weibin, Lin Zhili, Chen Houbo, Qiu Pingping, Wang Jia-Xian, Kan Qiang, Pan Jiao-Qing

机构信息

Fujian Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China.

College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100086, China.

出版信息

Nanomaterials (Basel). 2017 Aug 26;7(9):238. doi: 10.3390/nano7090238.

In this article, the lineshape of Fano-like resonance of graphene plasmonic oligomers is investigated as a function of the parameters of the nanostructures, such as disk size, chemical potential and electron momentum relaxation time in mid-infrared frequencies. Also, the mechanism of the optimization is discussed. Furthermore, the environmental index sensing effect of the proposed structure is revealed, and a figure of merit of 25.58 is achieved with the optimized graphene oligomer. The proposed nanostructure could find applications in the fields of chemical or biochemical sensing.