Rydberg–Stark states in oscillating electric fields
Rydberg–Stark states in oscillating electric fields
复制标题
振荡电场中的里德伯-斯塔克态
DOI：
10.1080/00268976.2015.1098741
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发表时间：
2015
影响因子：
1.7
通讯作者：
S. Hogan
中科院分区：
文献类型：
--
作者：
V. Zhelyazkova;S. Hogan
本文报道了弱射频电场对电偶极矩高达10000 D的Rydberg-Stark态的影响的实验和理论研究。用脉冲电场电离探测到激发原子，在亚稳氦脉冲超音速光束中对主量子数n=52和53的里德堡态进行了高分辨激光光谱研究。实验是在频率为20 MHz、幅度高达120 mV/cm、直流偏移量高达4.4V/cm的正弦振荡电场存在下进行的。在弱场中，实验记录的光谱与用Floquet方法计算振荡场中电偶极耦合的结果符合得很好。这突显了这些技术在这些场中准确计算斯塔克能级结构的有效性，以及在n混合和高阶贡献变得重要的较强场中计算的局限性。
Experimental and theoretical studies of the effects of weak radio-frequency electric fields on Rydberg–Stark states with electric dipole moments as large as 10,000 D are reported. High-resolution laser spectroscopic studies of Rydberg states with principal quantum number n = 52 and 53 were performed in pulsed supersonic beams of metastable helium with the excited atoms detected by pulsed electric field ionisation. Experiments were carried out in the presence of sinusoidally oscillating electric fields with frequencies of 20 MHz, amplitudes of up to 120 mV/cm, and dc offsets of up to 4.4 V/cm. In weak fields, the experimentally recorded spectra are in excellent agreement with the results of calculations carried out using Floquet methods to account for electric dipole couplings in the oscillating fields. This highlights the validity of these techniques for the accurate calculation of the Stark energy level structure in such fields, and the limitations of the calculations in stronger fields where n-mixing and higher order contributions become important.
里德伯 H2 分子在掺杂硅表面的电离。
DOI：
10.1063/1.4794691
发表时间：
2013
期刊：
The Journal of chemical physics
影响因子：
--
作者：
Sashikesh G
通讯作者：
Sashikesh G
影响因子：
2.9
作者：
Lancuba P
通讯作者：
Lancuba P