中国物理B ›› 2019, Vol. 28 ›› Issue (11): 114209-114209.doi: 10.1088/1674-1056/ab4580

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Electro-optomechanical switch via tunable bistability and four-wave mixing

Kamran Ullah   

  1. Department of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistan
  • 收稿日期:2019-05-30 修回日期:2019-07-14 出版日期:2019-11-05 发布日期:2019-11-05
  • 通讯作者: Kamran Ullah E-mail:kamran@phys.qau.edu.pk

Electro-optomechanical switch via tunable bistability and four-wave mixing

Kamran Ullah   

  1. Department of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistan
  • Received:2019-05-30 Revised:2019-07-14 Online:2019-11-05 Published:2019-11-05
  • Contact: Kamran Ullah E-mail:kamran@phys.qau.edu.pk

摘要: We investigate the tunable bistable behavior of a hybrid nano-electro-optomechanical system (NEOMS) composed of S-shaped in the presence of two-level atoms, trapped inside a Fabry-Pérot cavity, and driven by a strong driving field and a weak probe field. The bistable behavior of the steady-state photon number and the mechanical steady-state positions are discussed. Further, we tune bistability by tuning all the coupling frequencies involved in the system and amplitude of the driving field. The present study provides the possibility of realization of a controllable optical switch depending on atom-field coupling, optomechanical coupling, electrostatic Coulomb coupling, and threshold power. In addition, we discuss that the non-linear effect of the hybrid NEOMS generates the four-wave mixing (FWM) process. Moreover, we show that the FWM process can be suppressed by the atom-field detuning and cavity-field detuning, which exhibits low photon transmission.

关键词: nano-electro-optomechanics, nano-resonators, two-level atom, optical switch, optical bistability, four-wave mixing

Abstract: We investigate the tunable bistable behavior of a hybrid nano-electro-optomechanical system (NEOMS) composed of S-shaped in the presence of two-level atoms, trapped inside a Fabry-Pérot cavity, and driven by a strong driving field and a weak probe field. The bistable behavior of the steady-state photon number and the mechanical steady-state positions are discussed. Further, we tune bistability by tuning all the coupling frequencies involved in the system and amplitude of the driving field. The present study provides the possibility of realization of a controllable optical switch depending on atom-field coupling, optomechanical coupling, electrostatic Coulomb coupling, and threshold power. In addition, we discuss that the non-linear effect of the hybrid NEOMS generates the four-wave mixing (FWM) process. Moreover, we show that the FWM process can be suppressed by the atom-field detuning and cavity-field detuning, which exhibits low photon transmission.

Key words: nano-electro-optomechanics, nano-resonators, two-level atom, optical switch, optical bistability, four-wave mixing

中图分类号:  (Optical computers, logic elements, interconnects, switches; neural networks)

  • 42.79.Ta