• 文献标题:   Theoretical modelling of periodic graphene structures
  • 文献类型:   Article
  • 作  者:   KANG SW, JIAO NF, HAN K, SHEN XP, WANG WH
  • 作者关键词:   effective medium theory, optical properties of graphene, transfermatrix method optics
  • 出版物名称:   PHYSICA BCONDENSED MATTER
  • ISSN:   0921-4526 EI 1873-2135
  • 通讯作者地址:   China Univ Min Technol
  • 被引频次:   0
  • DOI:   10.1016/j.physb.2019.03.021
  • 出版年:   2019

▎ 摘  要

We present a theoretical model that can be implemented to study the electromagnetic scattering problem in graphene structure arrays efficiently. The graphene structure arrays are treated as a uniform two-dimensional sheet, and accordingly the optical response is characterized by an equivalent surface conductivity. In the homogenization procedure, the surface conductivity of an infinite graphene sheet are used to depict the local resonances, and the interaction between structures is described by the depolarization factor. The method can be easily extended to investigate the optical properties of multilayer graphene structures by combining the transfer matrix method (TMM), in which the full wave simulations (such as finite element method) are very time- and resource-consuming. Our work provides an alternative solution to optoelectronic devices design based on layered graphene structures.