Author(s): Liu, XY (Liu, Xiaoyu); Liu, ZZ (Liu, Zizheng); Hua, M (Hua, Ming); Wang, LY (Wang, Luyao); Wang, KF (Wang, Kaifeng); Zhang, WW (Zhang, Weiwei); Ning, YF (Ning, Yafei); Shi, YP (Shi,Yanpeng); Wang, XD (Wang, Xiaodong); Yang, FH (Yang, Fuhua)
Source: ACS APPLIED NANO MATERIALS Volume: 3 Issue: 3 Pages: 2129-2133 DOI: 10.1021/acsanm.0c00141 Published: MAR 2020
Abstract: Anapole mode is excited by the destructive interference between the toroidal- and electric-dipole moments, resulting in a high-quality (Q) factor. In this paper, we designed a high-Q-factor metamaterial that shows anapole behaviors in the terahertz region. Through the introduction of graphene, the destructive interference condition is disturbed and tunability can be realized.This pattern reflects a brilliant tunability performance in which frequency movements above 250 GHz per 0.1 eV can be verified. Ingenious adjustment by the position of graphene offers the possibility of diversified tuning capabilities. Such a tunable terahertz metamaterial has great potential in reconfigurable sensors.
Accession Number: WOS:000526396200005
ISSN: 2574-0970
Full Text: https://pubs.acs.org/doi/10.1021/acsanm.0c00141