Deflection of krypton Rydberg atoms in the field of an electric dipole
Deflection of krypton Rydberg atoms in the field of an electric dipole
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DOI：
10.1088/0953-4075/34/3/319
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发表时间：
2001-02
期刊：
影响因子：
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通讯作者：
D. Townsend;A. Goodgame;S. R. Procter;S R Mackenzie;T. Softley
中科院分区：
文献类型：
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作者：
D. Townsend;A. Goodgame;S. R. Procter;S R Mackenzie;T. Softley
证明了里德堡原子在非均匀电场中的受控偏转，并与基于定义明确的斯塔克图的预测相一致。超音速光束中的氪原子在双色多光子过程中被激发到选定的斯塔克态(n=16-19)，并在静电场中发生偏转。通过离子成像来监测偏转原子的空间分布。激发后沿光束方向运动约10 cm的原子偏离束轴最远3 mm，与场的相互作用发生在40µm的S光场上。模拟的轨迹与实验结果符合得很好，表明在40µm的S外场中，探测到的里德堡原子是未发生衰变过程的原子。
The controlled deflection of Rydberg atoms in an inhomogeneous electric field is demonstrated and shown to be in agreement with predictions based on a well-defined Stark map. Krypton atoms in a supersonic beam are excited in a two-colour multiphoton process to selected Stark states with n = 16-19 and undergo deflections in the field of an electrostatic dipole. The spatial distribution of the deflected atoms is monitored by ion imaging. The atoms travelling ~10 cm in the beam direction after excitation are deflected from the beam axis by distances of up to 3 mm, the interaction with the field taking place over 40 µs. Simulations of the trajectories agree well with the experimental results, demonstrating that the detected Rydberg atoms are those which have not undergone decay processes in the 40 µs applied field.