Spectrochimica Acta Part B Atomic Spectroscopy

Energy transfer mechanism of Kr atoms influenced by He atoms during laser-induced ionization for metastable state generation

Shu Hu, Jia Ju Wu, Shangmin Wang, Tao Li, Zihao Liu, Xianglong Cai, Baodong Gai, M. Xu, Yannan Tan, Jialiang Zhang, Jingwei Guo

Published Nov 17, 2025• 0 citations

Publisher

DOI: 10.1016/j.sab.2025.107391

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Spectrochimica Acta Part B Atomic Spectroscopy

Energy transfer mechanism of Kr atoms influenced by He atoms during laser-induced ionization for metastable state generation

Shu Hu, Jia Ju Wu, Shangmin Wang, Tao Li, Zihao Liu, Xianglong Cai, Baodong Gai, M. Xu, Yannan Tan, Jialiang Zhang, Jingwei Guo

Published Nov 17, 2025• 0 citations

Publisher

DOI: 10.1016/j.sab.2025.107391

Related papers

Exploration of the dynamic process of laser-induced ionization for the preparation of metastable Kr atoms based on the 5p[3/2]2 to 5s[3/2]2 transition

Jia Ju Wu, Shu Hu, Ke Huang +9 more

Journal of Quantitative Spectroscopy and Radiative TransferAug 12, 20252 citations

Mechanism of metastable krypton atom preparation via laser-induced ionization

Jia Ju Wu, Baodong Gai, Shu Hu +9 more

Journal of Quantitative Spectroscopy and Radiative TransferNov 1, 20244 citations

Techniques for rapid laser induced energy transfer using metastable states

Stephen E. Harris, J. F. Young

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Laser-Induced Ionizing Collisions of Ultracold Krypton Gas in the 1s5 Metastable State

Hidetoshi Katori, Fujio Shimizu

The line shape of laser-induced ionizing collisions of ultracold Kr gas is investigated near the ${1s}_{5}[4p^{5}5s:^{3}P_{2}]$ and ${2p}_{9}[4p^{5}5p:^{3}D_{3}]$ transition. The rate increases several times when the laser is red tuned by a few times of the natural width, while it sharply decreases for a slight blue detuning. This frequency dependence of the collision rate is due to the collision dynamics characteristic of ultracold atoms in a near-resonant light. Our experimental results on metastable Kr atoms show a good qualitative agreement with semiclassical Monte Carlo simulation of the cold collision dynamics.The line shape of laser-induced ionizing collisions of ultracold Kr gas is investigated near the ${1s}_{5}[4p^{5}5s:^{3}P_{2}]$ and ${2p}_{9}[4p^{5}5p:^{3}D_{3}]$ transition. The rate increases several times when the laser is red tuned by a few times of the natural width, while it sharply decreases for a slight blue detuning. This frequency dependence of the collision rate is due to the collision dynamics characteristic of ultracold atoms in a near-resonant light. Our experimental results on metastable Kr atoms show a good qualitative agreement with semiclassical Monte Carlo simulation of the cold collision dynamics.

Physical Review LettersNov 7, 199458 citations

Quantum statistical effect on ionizing collisions of ultracold metastable Kr isotopes

Hidetoshi Katori, Hideyuki Kunugita, T. Ido

Ultracold ionizing collisions of laser-cooled Kr isotopes in the 1 ${\mathit{s}}_{5}$ [4${\mathit{p}}^{5} $5s$ {:}^{3}$ ${\mathit{P}}_{2}$ ] metastable state are investigated. When the collision energy is reduced below the p-wave centrifugal barrier of 80 \ensuremath{\mu}K, the ratio of the ionizing collision rate between polarized and unpolarized $^{83}\mathrm{Kr}$ atoms is found to decrease. This is a direct evidence of the quantum interference of two identical Fermi particles. The experimental results are compared with the calculation based on the simplified inelastic collision theory.Ultracold ionizing collisions of laser-cooled Kr isotopes in the 1${\mathit{s}}_{5}$[4${\mathit{p}}^{5}$5s${:}^{3}$${\mathit{P}}_{2}$] metastable state are investigated. When the collision energy is reduced below the p-wave centrifugal barrier of 80 \ensuremath{\mu}K, the ratio of the ionizing collision rate between polarized and unpolarized $^{83}\mathrm{Kr}$ atoms is found to decrease. This is a direct evidence of the quantum interference of two identical Fermi particles. The experimental results are compared with the calculation based on the simplified inelastic collision theory.

Physical Review ADec 1, 199514 citations

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Joseph S. Bakos, Nikolai B. Delone, Annamária Kiss +2 more

Journal of Experimental and Theoretical PhysicsAug 1, 19760 citations

The line shape of laser-induced ionizing collisions of ultracold Kr gas is investigated near the

{1s}_{5}[4p^{5}5s:^{3}P_{2}]

and

{2p}_{9}[4p^{5}5p:^{3}D_{3}]

transition. The rate increases several times when the laser is red tuned by a few times of the natural width, while it sharply decreases for a slight blue detuning. This frequency dependence of the collision rate is due to the collision dynamics characteristic of ultracold atoms in a near-resonant light. Our experimental results on metastable Kr atoms show a good qualitative agreement with semiclassical Monte Carlo simulation of the cold collision dynamics.

Ultracold ionizing collisions of laser-cooled Kr isotopes in the 1

{\mathit{s}}_{5}

[4${\mathit{p}}^{5}

5s

{:}^{3}$

{\mathit{P}}_{2}

] metastable state are investigated. When the collision energy is reduced below the p-wave centrifugal barrier of 80 \ensuremath{\mu}K, the ratio of the ionizing collision rate between polarized and unpolarized

^{83}\mathrm{Kr}

atoms is found to decrease. This is a direct evidence of the quantum interference of two identical Fermi particles. The experimental results are compared with the calculation based on the simplified inelastic collision theory.