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Dual structure of saturated absorption resonance at an open atomic transition

机译:在开放原子跃迁处饱和吸收共振的双重结构

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Experiments on open transitions of the D_1 line of alkali metals (Cs and Rb isotopes) reveal the dual structure of saturated absorption resonance in the signal of a high-intensity optical wave in the presence of a low-intensity counterpropagating wave. Theoretical analysis shows that the observed shape of the resonance is associated with the openness of the atomic transition as well as with the Doppler effect for atoms in a gas. The results are of general physical significance for nonlinear spectroscopy and can also find application in metrology (frequency and time standards on open transitions).
机译:在碱金属(Cs和Rb同位素)的D_1谱线的开放跃迁上进行的实验揭示了在存在低强度反向传播波的情况下,高强度光波信号中饱和吸收共振的双重结构。理论分析表明,观察到的共振形状与原子跃迁的开放性以及气体中原子的多普勒效应有关。结果对于非线性光谱具有一般的物理意义,也可以在计量学(开放跃迁的频率和时间标准)中找到应用。

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