• 文献标题:   Design of a Perovskite Plasmonic Nanolaser Based on Graphene
  • 文献类型:   Article
  • 作  者:   NING SY, DUAN F, ZHANG NM, HE JJ, LIU ZH, WANG S, XUE T
  • 作者关键词:   nanolaser, plasmonic waveguide, graphene, perovskite, sliver bridge
  • 出版物名称:   PLASMONICS
  • ISSN:   1557-1955 EI 1557-1963
  • 通讯作者地址:  
  • 被引频次:   1
  • DOI:   10.1007/s11468-022-01701-z EA AUG 2022
  • 出版年:   2022

▎ 摘  要

We designed a novel perovskite plasmonic nanolaser based on a semiconductor-graphene-insulator-metal (SGIM) structure in the visible region, and the graphene is placed between an inorganic CsPbBr3 nanowire and a semi-circular silver ridge substrate deposited with silicon dioxide (SiO2). Based on the finite element method, the influences of the graphene thickness and CsPbBr3 nanowire radius on the mode characteristics and electric field distribution of the hybrid plasmonic waveguide were investigated. We obtained the optimal structure parameter of the hybrid plasmonic waveguide, which could achieve a low gain threshold of 0.72 mu m(-1) in the visible region. Furthermore, compared to a gold or copper bridge substrate, the plasmonic waveguide based on the sliver bridge substrate exhibited a smaller propagation loss and larger propagation distance, leading to a lower gain threshold. This work provides us a novel method for developing applications of nanolasers in the visible region.