Laser & Optoelectronics Progress, Volume. 56, Issue 6, 061301(2019)
Multi-Frequency Filtering Characteristics of Graphene-Nanoribbon Arrays Based on Finite Difference Time Domain Method
With the help of the resonance effect of graphene nanoribbon arrays, a three-layer graphene nanoribbon array is proposed. The influences of the various parameters of this array on the multi-frequency filtering characteristics of the composite structure are investigated. With the finite-difference time-domain (FDTD) method, the influences of Fermi level, graphene bandwidth ratio, and external refractive index on filter frequency are discussed. The research results show that the increase of Fermi level can make the resonant frequency blue shift, in contrast, the increase of graphene bandwidth ratio and external refractive index can both make the resonant frequency red shift. When Fermi level is changed by 0.1 eV, the resonant frequency can be changed by an amount of more than 5 THz.
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Sheng Yang, Chunping Zeng, Chi Xiao, Yaqiao Zhou, Hao Wang, Kun Ma. Multi-Frequency Filtering Characteristics of Graphene-Nanoribbon Arrays Based on Finite Difference Time Domain Method[J]. Laser & Optoelectronics Progress, 2019, 56(6): 061301
Category: Integrated Optics
Received: Aug. 31, 2018
Accepted: Oct. 17, 2018
Published Online: Jul. 30, 2019
The Author Email: Ma Kun (Makun_box@sina.com)