Coherent forward-scattering spectra of Cs I 852.1-nm with a light-emitting diode and a diode laser in a Voigt configuration
Coherent forward-scattering spectra of Cs I 852.1-nm with a light-emitting diode and a diode laser in a Voigt configuration
复制标题
采用 Voigt 配置的发光二极管和二极管激光器的 Cs I 852.1 nm 相干前向散射光谱
DOI：
10.1016/j.sab.2020.105935
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Matsuta Hideyuki
中科院分区：
文献类型：
--
作者：
安元 秀;石場 将希;喜納 淳;松田良信;山下 敬彦;Matsuta Hideyuki
用带有电磁铁和温控Cs气室的Voigt相干前向散射谱仪测量了Cs I 852.1 nm谱线的相干前向散射谱。使用发光二极管（LED）和二极管激光器（DL）分别作为宽带和窄带光源。对CFS强度与外加磁场（B）的关系进行了双对数作图。结果表明，DL和LED的CFS信号强度分别与B的1.69 ± 0.38和1.51 ± 0.06次方有关。当使用宽带光源时，较高的外部磁场应该是有利的。然而，当B接近300 mT时，CFS信号随着LED源而降低。为了解释这一现象，我们计算了Cs I 852.1-nm跃迁的超精细帕邢-巴克分裂模式。CFS信号的降低是由Voigt组态中Cs I 852.1-nm跃迁的π-和σ-分量的能级交叉引起的。
The coherent forward scattering (CFS) spectra of Cs I 852.1-nm line was measured using a CFS spectrometer in a Voigt configuration with an electromagnet and temperature-controlled Cs gas cell. A light-emitting diode (LED) and a diode laser (DL) were used as broadband and narrowband light sources, respectively. The relation of the CFS intensity and external magnetic field (B) was log–log plotted. Results showed that the CFS signal intensities depend onBto the power of 1.69 ± 0.38 and 1.51 ± 0.06 for DL and LED, respectively. A higher external magnetic field should be favorable when a broadband light source is used. However, the CFS signal decreased with an LED source asBapproached 300 mT. To explain this observation, the hyperfine Paschen–Back splitting pattern of the Cs I 852.1-nm transition was calculated. The decrease in the CFS signal was caused by the level-crossing of π- and σ-components of the Cs I 852.1-nm transition in a Voigt configuration.