• 文献标题:   Graphene as a tunable THz reservoir for shaping the Mollow triplet of an artificial atom via plasmonic effects
  • 文献类型:   Article
  • 作  者:   FORATI E, HANSON GW, HUGHES S
  • 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:   Univ Wisconsin
  • 被引频次:   7
  • DOI:   10.1103/PhysRevB.90.085414
  • 出版年:   2014

▎ 摘  要

Using a realistic quantum master equation, we show that the resonance fluorescence spectra of a two-level artificial atom (quantum dot) can be tuned by adjusting its photonic local density of states via biasing one or more graphene monolayers. The structured photon reservoir is included using a photon Green function theory which fully accounts for the loss and dispersion. The field-driven Mollow triplet spectrum can be actively controlled by the graphene bias in the THz frequency regime. We also consider the effect of a dielectric support environment and multiple graphene layers on the emitted fluorescence. Finally, thermal bath effects are considered and are shown to be important for low THz frequencies.