Detection of saturated absorption spectroscopy at high sensitivity with displaced crossovers.
Detection of saturated absorption spectroscopy at high sensitivity with displaced crossovers.
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DOI：
10.1364/ol.36.000561
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发表时间：
2010-11
期刊：
影响因子：
3.6
通讯作者：
Jun Duan;X. Qi;Xiaoji Zhou;Xuzong Chen
中科院分区：
文献类型：
--
作者：
Jun Duan;X. Qi;Xiaoji Zhou;Xuzong Chen
我们提出了一种非传统的实验方法来检测饱和吸收光谱。使用这种方法，交叉峰被移位，从而省去对应于原子的自然共振频率的峰。还可以提高检测的灵敏度。因此，光谱可以更清楚地反映原子的能量结构。在不受交越的有害影响的情况下，误差信号的锁定范围显著增大，并且色散线形状的对称性被完美地保持，因此可以提高频率稳定的可靠性。
We present an unconventional experimental approach for detecting saturated absorption spectroscopy. Using this approach, crossover peaks are displaced, leaving out peaks corresponding to an atom's natural resonant frequencies. Sensitivity of detection can also be enhanced. Consequently, the spectrum could reflect the energy structure of atoms more explicitly. Without harmful influence from crossovers, the locking range of the error signal is significantly increased and the symmetry of the dispersion line shape is perfectly preserved, so reliability of frequency stabilization can be improved.