含两能级原子系综的复合光力系统中的和边带效应
Sum sideband effect in hybrid optomechanical system with two-level atom ensemble
摘要
Abstract
Cavity optomechanics,as a cross-discipline between nanophotonics and quantum mechanics,provides a unique platform for investigating optomechanical coupling between photons in microcavities and phonons from mechanical modes.It has a wide range of potential applications in quantum physics,and now it has become a hot topic.A theoretical scheme to enhance the sum sideband generation(SSG)via a two-level atom ensemble is proposed.The effect of the atomic ensemble's detuning frequency on the efficiency of the SSG is considered by introducing a two-level atom medium.The results indicate that the efficiency of the generating sideband can be significantly enhanced under either red or blue detuning of the atoms,with greater dependence and more pronounced enhancement under the red detuning.In addition,we also consider the effect of pump power,which can effectively enhance the intensity of the output signal by selecting the appropriate pump power.More interestingly,the sensitivity of SSG to atomic detuning also indicates that the precise control of the atomic detuning frequency can achieve the fine-tuning of the SSG process.Furthermore,the cavity-atom coupling strength and atom decay rate are discussed for the transmission characteristics of the sum sideband signals.It is found that the efficiency of SSG can be effectively adjusted by the cavity-atom coupling strength and atom decay rate.The results show that the efficiency of SSG can be significantly improved by optimizing system parameters.The method of enhancing SSG may have potential application prospects in measuring high-precision weak forces and on-chip manipulation of light propagation.关键词
腔光力学/两能级原子/光力非线性/和边带效应Key words
cavity optomechanics/two-level atom/optomechanical nonlinearity/sum sideband effects引用本文复制引用
廖庆洪,唐志安,敖佳文..含两能级原子系综的复合光力系统中的和边带效应[J].物理学报,2025,74(8):121-129,9.基金项目
国家自然科学基金(批准号:62461035,62061028)、江西省自然科学基金重点项目(批准号:20232ACB202003)、南昌大学江西省财政科技专项"包干制"试点示范项目(批准号:ZBG20230418015)、重庆市自然科学基金(批准号:CSTB2024NSCQ-MSX0412)和上海市特殊人工微结构材料与技术重点实验室开放课题基金(批准号:ammt2021A-4)资助的课题. Project supported by the National Natural Science Foundation of China(Grant Nos.62461035,62061028),the Key Project of Natural Science Foundation of Jiangxi Province,China(Grant No.20232ACB202003),the Finance Science and Technology Special"Contract System"Project of Nanchang University of Jiangxi Province,China(Grant No.ZBG20230418015),the Natural Science Foundation of Chongqing,China(Grant No.CSTB2024NSCQ-MSX0412),and the Key Laboratory of Special Artificial Microstructure Materials and Technology Open Project Fund of Shanghai,China(Grant No.ammt2021A-4). （批准号:62461035,62061028）
