A flexible control on electromagnetic behaviors of graphene oligomer by tuning chemical potential.

Autor: Ren J; Fujian Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, 361021, China., Wang G; Fujian Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, 361021, China., Qiu W; Fujian Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, 361021, China. wbqiu@hqu.edu.cn., Chen H; Fujian Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, 361021, China., Qiu P; Fujian Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, 361021, China., Kan Q; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100086, China.; Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100086, China., Pan JQ; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100086, China.; Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100086, China.
Jazyk: angličtina
Zdroj: Nanoscale research letters [Nanoscale Res Lett] 2018 Nov 03; Vol. 13 (1), pp. 349. Date of Electronic Publication: 2018 Nov 03.
DOI: 10.1186/s11671-018-2762-4
Abstrakt: In this work, we demonstrate that the electromagnetic properties of graphene oligomer can be drastically modified by locally modifications of the chemical potentials. The chemical potential variations of different positions in graphene oligomer have different impacts on both extinction spectra and electromagnetic fields. The flexible tailoring of the localizations of the electromagnetic fields can be achieved by precisely adjusting the chemical potentials of the graphene nanodisks at corresponding positions. The proposed nanostructures in this work lead to the practical applications of graphene-based plasmonic devices such as nanosensing, light trapping and photodetection.
Databáze: MEDLINE
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