中国物理B ›› 2014, Vol. 23 ›› Issue (6): 67302-067302.doi: 10.1088/1674-1056/23/6/067302

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Switching and Fano resonance via exciton-plasmon interaction

李建波, 贺梦冬, 王新军, 彭小芳, 陈丽群   

  1. Institute of Mathematics and Physics, Central South University of Forestry and Technology, Changsha 410004, China
  • 收稿日期:2013-07-26 修回日期:2013-12-09 出版日期:2014-06-15 发布日期:2014-06-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11174372).

Switching and Fano resonance via exciton-plasmon interaction

Li Jian-Bo (李建波), He Meng-Dong (贺梦冬), Wang Xin-Jun (王新军), Peng Xiao-Fang (彭小芳), Chen Li-Qun (陈丽群)   

  1. Institute of Mathematics and Physics, Central South University of Forestry and Technology, Changsha 410004, China
  • Received:2013-07-26 Revised:2013-12-09 Online:2014-06-15 Published:2014-06-15
  • Contact: Li Jian-Bo E-mail:jbli_opt@126.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11174372).

摘要: We further study theoretically the properties of switching and Fano resonance in a hybrid nanosystem consisting of two quantum dots (QDs) and a metal nanowire via exciton-plasmon interaction. The transmission of the single plasmon can be switched on or off in a wide-frequency region by adjusting the transition frequencies of the QDs and the phase of the propagating plasmon. Specifically, the dynamical mechanism of Fano-type transmission is further revealed and analyzed in detail.

关键词: surface plasmon, quantum dots, quantum computation, optical waveguides and couplers

Abstract: We further study theoretically the properties of switching and Fano resonance in a hybrid nanosystem consisting of two quantum dots (QDs) and a metal nanowire via exciton-plasmon interaction. The transmission of the single plasmon can be switched on or off in a wide-frequency region by adjusting the transition frequencies of the QDs and the phase of the propagating plasmon. Specifically, the dynamical mechanism of Fano-type transmission is further revealed and analyzed in detail.

Key words: surface plasmon, quantum dots, quantum computation, optical waveguides and couplers

中图分类号:  (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))

  • 73.20.Mf
78.67.Hc (Quantum dots) 03.67.Lx (Quantum computation architectures and implementations) 42.79.Gn (Optical waveguides and couplers)