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Autler–Townes spectroscopy of high-lying state by phase conjugate six-wave mixing

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Chinese Physics B 2017年第4期26卷 207-213页

作者：白金海李建军吴令安傅盘铭王如泉左战春 Laboratory of Optical Physics Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing 1O0190China

An Autler-Townes（AT） spectroscopy based on phase conjugate six-wave mixing（SWM） is proposed to detect AT doublet of high-lying state in a Doppler-broadened cascade four-level *** is found that the SWM spectrum is dependent strongly on the ratios between the magnitudes of the wave *** discuss how the Doppler broadening affects the SWM spectrum from a time-domain viewpoint and find that,due the atomic motion,the atomic polarizations acquire different phases for atoms with different velocities as time *** Doppler free SWM spectrum can be obtained only when the atomic polarization can be rephasing again at certain time after the interactions of all the incident fields.

关键词： Autler-Townes splitting six-wave mixing Doppler broadening

Enhanced or suppressed six-wave mixing in a five-level atomic system

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Chinese Physics B 2011年第7期20卷 205-209页

作者：宋悦代国宪付雨欣赵金燕王志国张彦鹏 Key Laboratory for Physical Electronics and Devices of the Ministry of Education and Shaanxi Key Laboratory of Information Photonic Technique Xi'an Jiaotong University

We show the enhancement and suppression of a six-wave mixing （SWM） signal in the electromagnetically induced transparency in a five-level SSRb atomic system. The results show the Autler-Townes splitting and the enhancement or suppression of SWM, which are caused respectively by a self-dressing effect and by an external dressing effect in the presence of mutual dressing between two SWM signals. In addition, we observe the polarization dependence of the enhancement and suppression of the SWM signals.

关键词： six-wave mixing electromagnetically induced transparency enhancement suppression

six-wave mixing phase-dispersion by optical heterodyne detection in dressed reverse N-type four-level system

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Chinese Physics B 2007年第11期16卷 3407-3415页

作者：甘琛利聂志强李岭沈磊剑张彦鹏宋建平李院院张相臣卢克清 Key Laboratory for Physical Electronics and Devices of the Ministry of Education Xi'an Jiaotong UniversityXj'an710049.China Department of Physics University of ArkansasFayettevilleArkansas 72701USA State Key Laboratory of Transient Optics and Technology Xi'an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi'an 710068China

We have investigated the dressed effects of non-degenerate four-wave mixing （NDFWM） and demonstrated a phase-sensitive method of studying the fifth-order nonlinear susceptibility due to atomic coherence in RN-type four-level system. In the presence of a strong coupling field, NDFWM spectrum exhibits Autler-Townes splitting, accompanied by either suppression or enhancement of the NDFWM signal, which is directly related to the competition between the absorption and dispersion contributions. The heterodyne-deteeted nonlinear absorption and dispersion of six-wave mixing signal in the RN-type system show that the hybrid radiation-matter detuning damping oscillation is in the THz range and can be controlled and modified through the eolour-locked correlation of twin noisy fields.

关键词： four-wave mixing six-wave mixing

Multi-wave mixing Autler-Townes splitting in the five-level atomic system

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Science China(Physics,Mechanics & Astronomy) 2011年第9期54卷 1600-1607页

作者： WU ZhenKun LI PeiYing ZHANG ZhaoYang SANG SuLing WANG RuiMin ZHANG YanPeng Key Laboratory for Physical Electronics Devices of the Ministry of Education & Shaanxi Key Lab of lnformation Photonic Technique and School of Science Xi'an Jiaotong University Xi'an 710049 China

We have demonstrated the Autler-Townes (AT) splitting of the four-wave mixing (FWM) process and the six-wave mixing (SWM) process in an elec tromag netically induced transparency (EIT) window in five-level atomic vapor of 87 Rb. Moreover we discuss interactions of multi-dressed states. The experimental results agree well with the theoretical analysis.

关键词： four.wave mixing six-wave mixing multi-dressed states Autler-Townes splitting