Micron-thick spectroscopic cells for studying the Paschen-Back regime on the hyperfine structure of cesium atoms
Micron-thick spectroscopic cells for studying the Paschen-Back regime on the hyperfine structure of cesium atoms
复制标题
用于研究铯原子超精细结构的帕邢-巴克体系的微米厚光谱池
DOI：
10.1134/s1063776115040159
复制
发表时间：
2015
影响因子：
1.1
通讯作者：
D. Sarkisyan
中科院分区：
文献类型：
--
作者：
A. Sargsyan;B. Glushko;D. Sarkisyan
结果表明，使用微米厚度的光谱池(L=10-50μm)，可以有效地研究Cs-D2谱线在高达9 kg的强磁场中的行为。特别是，Cs在8 kg以上光场中被圆偏振光激发的吸收光谱由两个完全分离的基团组成，每个基团包含八个原子跃迁。每组原子跃迁的强度及其频率斜率(与磁场的关系)几乎相同。给出了观察到的特征的物理解释，特别是表明了中等磁场(记为Fg=4，Mf=4→Fe=5，Mf=5)中的54个可能的原子跃迁中的一个具有独特的特征，使得预测同一群中七个原子跃迁的强度和频率斜率成为可能。考虑了基于微米-薄单元的器件在强磁场中的实际应用。
It is shown that the use of spectroscopic cells of micron thickness (L = 10–50 μm) allows one to effectively study the behavior of individual levels of the Cs D2 line in strong magnetic fields up to 9 kG. In particular, the absorption spectrum of Cs excited by circularly polarized light in fields above 8 kG consists of two fully separated groups, each containing eight atomic transitions. The intensities of atomic transitions and their frequency slopes (vs. magnetic field) in each group are almost the same. The physical explanation for the observed features is given; in particular, it is shown that one of the 54 possible atomic transitions in moderate magnetic fields (denoted Fg = 4, mF = 4 → Fe = 5, mF = 5) has unique characteristics that make it possible to predict the intensities and frequency slopes of seven atomic transitions in the same group. Practical applications of devices based on micrometric-thin cells in strong magnetic fields are considered.