中国物理B ›› 2025, Vol. 34 ›› Issue (1): 14201-014201.doi: 10.1088/1674-1056/ad8cc0

• • 上一篇    

Enhanced mechanical squeezing in an optomechanical system via backward stimulated Brillouin scattering

Shan-Shan Chen(陈珊珊)1, Yi-Long Xie(谢亦龙)1, Jing-Jing Zhang(张京京)1, Na-Na Zhang(张娜娜)1, Yong-Rui Guo(郭永瑞)1, Huan Yang(杨桓)1,†, and Yong Ma(马勇)1,2,‡   

  1. 1 School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;
    2 China Electronics Technology Group Corporation 44 th Research Institute, Chongqing 400065, China
  • 收稿日期:2024-09-18 修回日期:2024-10-23 接受日期:2024-10-30 发布日期:2024-12-06
  • 通讯作者: Huan Yang, Yong Ma E-mail:yanghuan@cqupt.edu.cn;mayong@cqupt.edu.cn
  • 基金资助:
    Project supported by the Scientific and Technological Research Program of Chongqing Municipal Education Commission (Grant No. KJQN202400624), the Natural Science Foundation of Chongqing CSTC (Grant No. CSTB2022NSCQBHX0020), the China Electronics Technology Group Corporation 44th Research Institute (Grant No. 6310001-2), the Project Grant “Noninvasive Sensing Measurement based on Terahertz Technology” from Province and MOE Collaborative Innovation Centre for New Generation Information Networking and Terminals, the Key Research Program of CQUPT on Interdisciplinary and Emerging Field (A2018-01), and the Venture & Innovation Support program for Chongqing Overseas Returnees Year 2022.

Enhanced mechanical squeezing in an optomechanical system via backward stimulated Brillouin scattering

Shan-Shan Chen(陈珊珊)1, Yi-Long Xie(谢亦龙)1, Jing-Jing Zhang(张京京)1, Na-Na Zhang(张娜娜)1, Yong-Rui Guo(郭永瑞)1, Huan Yang(杨桓)1,†, and Yong Ma(马勇)1,2,‡   

  1. 1 School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;
    2 China Electronics Technology Group Corporation 44 th Research Institute, Chongqing 400065, China
  • Received:2024-09-18 Revised:2024-10-23 Accepted:2024-10-30 Published:2024-12-06
  • Contact: Huan Yang, Yong Ma E-mail:yanghuan@cqupt.edu.cn;mayong@cqupt.edu.cn
  • Supported by:
    Project supported by the Scientific and Technological Research Program of Chongqing Municipal Education Commission (Grant No. KJQN202400624), the Natural Science Foundation of Chongqing CSTC (Grant No. CSTB2022NSCQBHX0020), the China Electronics Technology Group Corporation 44th Research Institute (Grant No. 6310001-2), the Project Grant “Noninvasive Sensing Measurement based on Terahertz Technology” from Province and MOE Collaborative Innovation Centre for New Generation Information Networking and Terminals, the Key Research Program of CQUPT on Interdisciplinary and Emerging Field (A2018-01), and the Venture & Innovation Support program for Chongqing Overseas Returnees Year 2022.

摘要: We investigate theoretically the enhancement of mechanical squeezing in a multimode optomechanical system by introducing a coherent phonon-photon interaction via the backward stimulated Brillouin scattering (BSBS) process. The coherent photon-phonon interaction where two optical modes couple to a Brillouin acoustic mode with a large decay rate provides an extra channel for the cooling of a Duffing mechanical oscillator. The squeezing degree and the robustness to the thermal noises of the Duffing mechanical mode can be enhanced greatly. When the Duffing nonlinearity is weak, the squeezing degree of the mechanical mode in the presence of BSBS can be improved by more than one order of magnitude compared with that in the absence of BSBS. Our scheme may be extended to other quantum systems to study novel quantum effects.

关键词: mechanical squeezing, optomechanical system, backward stimulated Brillouin scattering, Duffing nonlinearity

Abstract: We investigate theoretically the enhancement of mechanical squeezing in a multimode optomechanical system by introducing a coherent phonon-photon interaction via the backward stimulated Brillouin scattering (BSBS) process. The coherent photon-phonon interaction where two optical modes couple to a Brillouin acoustic mode with a large decay rate provides an extra channel for the cooling of a Duffing mechanical oscillator. The squeezing degree and the robustness to the thermal noises of the Duffing mechanical mode can be enhanced greatly. When the Duffing nonlinearity is weak, the squeezing degree of the mechanical mode in the presence of BSBS can be improved by more than one order of magnitude compared with that in the absence of BSBS. Our scheme may be extended to other quantum systems to study novel quantum effects.

Key words: mechanical squeezing, optomechanical system, backward stimulated Brillouin scattering, Duffing nonlinearity

中图分类号:  (Quantum fluctuations, quantum noise, and quantum jumps)

  • 42.50.Lc
42.50.-p (Quantum optics) 42.50.Pq (Cavity quantum electrodynamics; micromasers)