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研究了非简并Λ型三能级原子速度选择相干布居俘获与原子能级结构的非对称性以及原子-激光失谐之间的关系.指出相对于简并、共振情况,原子动量分布的概率峰峰值降低、最可几动量发生变化,而且原子的俘获时间也变得很长.
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关键词:
- 激光冷却 /
- 速度选择相干布居俘获 /
- 暗态 /
- 原子动量分布
We present in this paper a detailed discussion of the velocity_selective coherent population trapping of an atomic system in a nondegenerate Λ three_level configuration.Compared with the case of degenerate ground states and laser_atom resonance,the most probable value of the atomic_momentum distribution greatly decreases and much longer trapping time is needed in order to generate the same trapping effect.-
Keywords:
- laser cooling, velocity-selective coherent population trapping, dark state, atomic-momentum distribution /
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