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

• 来源期刊: 中国物理B（英文版）
• 关键词: four-wave mixing six-wave mixing
• 年，卷（期）: 2007,（11）
• 页码范围: 3407-3415
• 页数: 9页
• 语种: 英文

摘要

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.