arXivDaily arXiv每日学术速递 周一至周五更新
arXiv physics/0602189physics.atom-ph
收藏

Ba原子态的偏振相关光电离截面和辐射寿命

Polarization dependent photoionization cross-sections and radiative lifetimes of atomic states in Ba

C. -H. Li, D. Budker

摘要:

在556.6nm激光电离波长下,测量了Ba原子两个偶宇称激发态$5d6d ^3D_1$和$6s7d ^3D_{2}$的光电离截面。我们发现,总截面依赖于原子和电离激光的相对偏振。利用密度矩阵代数,我们证明了,在一般情况下,在光电离截面中最多有三个参数。其中一些参数是在这项工作中确定的。我们还测量了钡原子五个偶宇称激发态的辐射寿命。

英文摘要:

The photoionization cross-sections of two even-parity excited states, $5d6d ^3D_1$ and $6s7d ^3D_{2}$, of atomic Ba at the ionization-laser wavelength of 556.6 nm were measured. We found that the total cross-section depends on the relative polarization of the atoms and the ionization-laser light. With density-matrix algebra, we show that, in general, there are at most three parameters in the photoionization cross-section. Some of these parameters are determined in this work. We also present the measurement of the radiative lifetime of five even-parity excited states of barium.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑