Jia Wu , Shu Hu , Ke Huang , Zihao Liu , Tao Li , Ling Wang , Xianglong Cai , Baodong Gai , Dongdong Xu , Shutong He , Yannan Tan , Jingwei Guo
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引用次数: 0
Abstract
This paper continues the work of our previous study [J. Quant. Spectrosc. Radiat. Transf. 330 109233], further exploring the dynamics of the metastable 5s[3/2]2 level of Kr atoms prepared by laser-induced ionization. Focusing on the “photon excitation + radiation” process, “electron-impact excitation + radiation” process, and “ion-electron recombination” process, we obtained the corresponding total collisional decay rate constants kcol for the 5p[3/2]2 level of (1.11±0.09)×10−11 cm3 s−1, (0.09±0.03)×10−11 cm3 s−1, and (0.0010±0.0001)×10−11 cm3 s−1, respectively, based on time-resolved spectra at 760.15 nm. While the corresponding total radiative decay rates krad were (2.58±0.75)×107 s−1, (0.88±0.29)×107 s−1, and (0.004±0.001)×107 s−1. Through the analysis and comparison of the total collisional decay rate constants, and radiative decay rates obtained from the three stages, this study provides an in-depth understanding of the dynamic processes of the interactions between the relevant physical mechanisms during laser-induced ionization to produce metastable atoms. It clearly identifies that the changes in the population replenishment rate of the 5p[3/2]2 level, due to the collision and radiation channels at different stages, are key factors influencing the values of kcol and krad.
期刊介绍:
Papers with the following subject areas are suitable for publication in the Journal of Quantitative Spectroscopy and Radiative Transfer:
- Theoretical and experimental aspects of the spectra of atoms, molecules, ions, and plasmas.
- Spectral lineshape studies including models and computational algorithms.
- Atmospheric spectroscopy.
- Theoretical and experimental aspects of light scattering.
- Application of light scattering in particle characterization and remote sensing.
- Application of light scattering in biological sciences and medicine.
- Radiative transfer in absorbing, emitting, and scattering media.
- Radiative transfer in stochastic media.