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Optical bistability in an optomechanical system assisted by quantum dot molecules

SHIYOU DING1,2,* , CHUNCHAO YU1,2, LIHUI SUN1,2, HUAFENG ZHANG1,2, FANG CHEN1,2

Affiliation

  1. School of Physics and Optoelectronic Engineering, Yangtze University, Jingzhou, 434023, China
  2. Institute of Quantum Optics and Information Photonics, Yangtze University, Jingzhou, 434023, China

Abstract

Optical bistability (OB) in a hybrid optomechanical system with quantum dot molecules (QDMs) is investigated theoretically. The OB behavior between the optomechanical cavity photon number and the coupling-laser Rabi frequency can be controlled for different system parameters such as their frequency detuning, the coupling strength, the optical cavity decay rate and the tuning strength in the QDMs. The photon number of the optomechanical cavity vs. frequency detuning has been calculated numerically to explain the OB. It is revealed that the tunneling effect in the QDMs can be used to adjust the OB finely. Such a system may be used in the bistable optical switching and other quantum information technology..

Keywords

Optomechanical system, Optical bistability, Quantum dot molecule.

Submitted at: July 17, 2020
Accepted at: Oct. 7, 2021

Citation

SHIYOU DING, CHUNCHAO YU, LIHUI SUN, HUAFENG ZHANG, FANG CHEN, Optical bistability in an optomechanical system assisted by quantum dot molecules, Journal of Optoelectronics and Advanced Materials Vol. 23, Iss. 9-10, pp. 463-471 (2021)