中国物理B ›› 2023, Vol. 32 ›› Issue (11): 114205-114205.doi: 10.1088/1674-1056/acd7d2

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Electromagnetically induced transparency via localized surface plasmon mode-assisted hybrid cavity QED

Xiaomiao Li(李晓苗), Famin Liu(刘发民), Zigeng Li(李子更), Hongyan Zhu(朱虹燕), Fan Wang(王帆), and Xiaolan Zhong(钟晓岚)   

  1. School of Physics, Beihang University, Beijing 100191, China
  • 收稿日期:2023-03-07 修回日期:2023-05-16 接受日期:2023-05-23 出版日期:2023-10-16 发布日期:2023-10-26
  • 通讯作者: Xiaolan Zhong E-mail:Zhongxl@buaa.edu.cn
  • 基金资助:
    The authors acknowledge support from the National Natural Science Foundation of China (Grant Nos. 62075004 and 11804018) and the Beijing Natural Science Foundation (Grant No. 4212051).

Electromagnetically induced transparency via localized surface plasmon mode-assisted hybrid cavity QED

Xiaomiao Li(李晓苗), Famin Liu(刘发民), Zigeng Li(李子更), Hongyan Zhu(朱虹燕), Fan Wang(王帆), and Xiaolan Zhong(钟晓岚)   

  1. School of Physics, Beihang University, Beijing 100191, China
  • Received:2023-03-07 Revised:2023-05-16 Accepted:2023-05-23 Online:2023-10-16 Published:2023-10-26
  • Contact: Xiaolan Zhong E-mail:Zhongxl@buaa.edu.cn
  • Supported by:
    The authors acknowledge support from the National Natural Science Foundation of China (Grant Nos. 62075004 and 11804018) and the Beijing Natural Science Foundation (Grant No. 4212051).

摘要: In recent years, most studies have focused on the perfect absorption and high-efficiency quantum memory of the one-sided system, ignoring the characteristics of its optical switching contrast. Thus, the performance of all-optical switching and optical transistors is limited. Herein, we propose a localized surface plasmon (LSP) mode-assisted cavity QED system which consists of a Λ-shaped three-level quantum emitter (QE), a metal nanoparticle and a one-sided optical cavity with a fully reflected mirror. In this system, the QE coherently couples to the cavity and LSP mode respectively, which is manipulated by the control field. As a result, considerably high and stable switch contrast of 90% can be achievable due to the strong confined field of the LSP mode and perfect absorption of the optical medium. In addition, we obtain a power dependent effect between the control field and the transmitted frequency as a result of the converted dark state. We employ the Heisenberg-Langevin equation and numerical master equation formalisms to explain high switching, controllable output light and the dark state. Our system introduces an effective method to improve the performance of optical switches based on the one-sided system in quantum information storage and quantum communication.

关键词: quantum optics, electromagnetically induced transparency, all-optical switching, localized surface plasmon

Abstract: In recent years, most studies have focused on the perfect absorption and high-efficiency quantum memory of the one-sided system, ignoring the characteristics of its optical switching contrast. Thus, the performance of all-optical switching and optical transistors is limited. Herein, we propose a localized surface plasmon (LSP) mode-assisted cavity QED system which consists of a Λ-shaped three-level quantum emitter (QE), a metal nanoparticle and a one-sided optical cavity with a fully reflected mirror. In this system, the QE coherently couples to the cavity and LSP mode respectively, which is manipulated by the control field. As a result, considerably high and stable switch contrast of 90% can be achievable due to the strong confined field of the LSP mode and perfect absorption of the optical medium. In addition, we obtain a power dependent effect between the control field and the transmitted frequency as a result of the converted dark state. We employ the Heisenberg-Langevin equation and numerical master equation formalisms to explain high switching, controllable output light and the dark state. Our system introduces an effective method to improve the performance of optical switches based on the one-sided system in quantum information storage and quantum communication.

Key words: quantum optics, electromagnetically induced transparency, all-optical switching, localized surface plasmon

中图分类号:  (Quantum optics)

  • 42.50.-p
42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption) 37.30.+i (Atoms, molecules, andions incavities) 73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))