Six-wave mixing phase-dispersion by optical heterodyne detection in dressed reverse N-type four-level system
Gan Chen-Li(甘琛利)a)b), Nie Zhi-Qiang (聂志强)a), Li Ling(李岭)a), Shen Lei-Jian(沈磊剑)a), Zhang Yan-Peng(张彦鹏)a)b)†, Song Jian-Ping(宋建平)a), Li Yuan-Yuan(李院院)a), Zhang Xiang-Chen(张相臣)a), and Lu Ke-Qing(卢克清)c)
a Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, China; b Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA; c State Key Laboratory of Transient Optics and Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710068, China
Abstract 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-detected 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 colour-locked correlation of twin noisy fields.
Accepted manuscript online:
PACS:
42.65.Hw
(Phase conjugation; photorefractive and Kerr effects)
Gan Chen-Li(甘琛利), Nie Zhi-Qiang (聂志强), Li Ling(李岭), Shen Lei-Jian(沈磊剑), Zhang Yan-Peng(张彦鹏), Song Jian-Ping(宋建平), Li Yuan-Yuan(李院院), Zhang Xiang-Chen(张相臣), and Lu Ke-Qing(卢克清) Six-wave mixing phase-dispersion by optical heterodyne detection in dressed reverse N-type four-level system 2007 Chinese Physics 16 3407
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