Autler-Townes spectroscopy of high-lying state by phase conjugate six-wave mixing
Autler-Townes spectroscopy of high-lying state by phase conjugate six-wave mixing
复制标题
相位共轭六波混频高位态奥特勒-汤斯光谱
DOI：
10.1088/1674-1056/26/4/044204
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发表时间：
2017
影响因子：
1.7
通讯作者：
Zuo Zhan Chun
中科院分区：
文献类型：
--
作者：
Bai Jin Hai;Li Jian Jun;Wu Ling An;Fu Pan Ming;Wang Ru Quan;Zuo Zhan Chun
提出了一种基于相位共轭六波混频（SWM）的Autler-Townes（AT）光谱法，用于探测多普勒展宽级联四能级系统中高激发态的AT二重态。研究发现，SWM谱强烈依赖于波矢幅值之间的比值。我们讨论了多普勒展宽如何影响SWM谱从时域的观点，发现，由于原子的运动，原子的极化获得不同的相位与不同的速度随着时间的推移。只有当所有入射场相互作用后，原子的偏振态在一定时间内重新相位化，才能得到无多普勒的慢波调制谱。（文件）
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 system. It is found that the SWM spectrum is dependent strongly on the ratios between the magnitudes of the wave vectors. We 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 evolves. The 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.(paper)