Even parity series of argon Rydberg states studied by fast-beam collinear laser spectroscopy
Even parity series of argon Rydberg states studied by fast-beam collinear laser spectroscopy
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快束共线激光光谱研究氩里德伯态偶宇称级数
DOI：
10.1088/0953-4075/21/23/005
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
M. Aymar
中科院分区：
文献类型：
--
作者：
M. Pellarin;J. Vialle;M. Carré;J. Lermé;M. Aymar
本文应用共线激光光谱技术和场电离探测方法研究了氩原子的偶宇称光谱。光激发是由工作在300nm区域的倍频连续波环形染料激光器产生的。选择与钠蒸气电荷交换碰撞填充的4s(3/2)20亚稳能级作为单光子激发过程的起始能级。已经测量了属于3p5np和3p5nf构型的241个能级，绝对精度为0.02 cm-1。第一个电离极限被重新确定为I32/=127 109.88+或0.02 cm-1，并对整个系列进行了MQDT（多通道量子缺陷理论）处理，完成了之前对奇谱的研究。此外，还详细介绍了该方法的灵敏度、优点和局限性。
The authors have applied the collinear laser spectroscopy technique together with a field ionisation detection method to investigate the even parity spectra of atomic argon. The optical excitation is produced by a frequency doubled CW ring dye laser operating in the 300 nm region. The 4s(3/2)20 metastable level populated by means of charge exchange collisions with sodium vapour was chosen to be the starting level in the one-photon excitation process. Two hundred and forty one levels belonging to the 3p5np and 3p5nf configurations has been measured with an absolute accuracy of 0.02 cm-1. The first ionisation limit has been redetermined to be I32/=127 109.88+or-0.02 cm-1 and a MQDT (multichannel quantum defect theory) treatment of the whole series has been performed, completing the previous studies of odd spectra. In addition, some details are given concerning the sensitivity, the advantages and limitations of this method.