Radiative lifetime measurements of metastable levels in Kr3+ using electrostatic ion beam trap
Radiative lifetime measurements of metastable levels in Kr3+ using electrostatic ion beam trap
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使用静电离子束阱测量 Kr3 中亚稳态水平的辐射寿命
DOI：
10.1002/xrs.3042
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Y. Haruyama
中科院分区：
文献类型：
--
作者：
M. Saito;H. Kubota;T. Majima;M. Imai;H. Tsuchida;Y. Haruyama
利用静电离子束阱测量了Kr3+离子中亚稳的4s24p3、2p3 /2和2p1 /2能级的辐射寿命。寿命是通过测量存储的Kr3+离子在2p3 /2→4s3 /2和2p1 /2→4s3 /2禁跃迁期间发射的光子数作为存储时间的函数来确定的。2p3 /2和2p1 /2状态的寿命值分别为23.3±1.4和52.8±3.8 ms。对于2p3 /2态，这是第一次对辐射寿命的实验研究。考虑到实验误差，得到的寿命与先前报道的理论预测和2p1 /2状态的实验结果一致。
The radiative lifetimes of the metastable 4s24p3 2P3/2and2P1/2levels in Kr3+ions were measured using an electrostatic ion beam trap. The lifetimes were determined by measuring the number of photons emitted during the2P3/2→4S3/2and2P1/2→4S3/2forbidden transitions of the stored Kr3+ions, as a function of the storage time. The obtained lifetime values for the2P3/2and2P1/2states were 23.3 ± 1.4 and 52.8 ± 3.8 ms, respectively. For the2P3/2state, this is the first experimental investigation of the radiative lifetime. Considering the experimental errors, the obtained lifetimes are consistent with the previously reported theoretical predictions for each state and the experimental result for the2P1/2state.