• 文献标题:   Exciton-plasmaritons in graphene/semiconductor structures
  • 文献类型:   Article
  • 作  者:   VELIZHANIN KA, SHAHBAZYAN TV
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   1098-0121 EI 1550-235X
  • 通讯作者地址:   Los Alamos Natl Lab
  • 被引频次:   6
  • DOI:   10.1103/PhysRevB.90.085403
  • 出版年:   2014

▎ 摘  要

We study strong coupling between plasmons in monolayer charge-doped graphene and excitons in a narrow gap semiconductor quantum well separated from graphene by a potential barrier. We show that the Coulomb interaction between excitons and plasmons results in mixed states described by a Hamiltonian similar to that for exciton-polaritons and derive the exciton-plasmon coupling constant that depends on system parameters. We calculate numerically the Rabi splitting of exciton-plasmariton dispersion branches for several semiconductor materials and find that it can reach values of up to 50-100 meV.