Fano resonance and slow light in hybrid optomechanics mediated by a two-level system

Cheng Jiang, Lei Jiang, Hualing Yu, Yuanshun Cui, Xiaowei Li, and Guibin Chen
Phys. Rev. A 96, 053821 – Published 8 November 2017

Abstract

We study the Fano resonance and slow light in a hybrid optomechanical system, where a mechanical resonator is coupled to a cavity via radiation pressure and to a two-level system (qubit) via the Jaynes-Cummings coupling. The absorption spectra of the weak probe field can exhibit a series of asymmetric Fano line shapes when the frequency of the strong control field varies. The positions of the double Fano resonances can be determined by the cavity–control-field detuning, the qubit-resonator coupling strength, and the transition frequency of the qubit. Furthermore, the transparency windows in the probe transmission spectrum are accompanied by the rapid normal phase dispersion, which indicates the slow light effect. We find that the group delay of the transmitted probe field can be tuned by the frequency and amplitude of the control field and is inversely proportional to the decay rate of the qubit.

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  • Received 8 August 2017

DOI:https://doi.org/10.1103/PhysRevA.96.053821

©2017 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Cheng Jiang1,2,*, Lei Jiang1, Hualing Yu1, Yuanshun Cui1, Xiaowei Li1, and Guibin Chen1

  • 1School of Physics and Electronic Electrical Engineering, Huaiyin Normal University, 111 West Chang Jiang Road, Huai'an 223300, China
  • 2Beijing Computational Science Research Center, Beijing 100084, China

  • *chengjiang8402@163.com

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Issue

Vol. 96, Iss. 5 — November 2017

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