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研究了级联三能级系统中的相位共轭极化拍频光谱术.发现其对能级差的测量精度决定于光学跃迁的均匀增宽.在符合拍频条件时，两独立光源拍频的频差可以超出激光线宽，激光绝对频率的测量精度可达到与激光线宽同一量级.We have studied the polarization beats spectroscopy with phase-conjugation geometry in a cascade three-level system.It was found that the accuracy for the energy-level difference measurement is determined by the homogeneous linewidths of the optical trans
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中国物理学会期刊
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