Transition frequencies, isotope shifts, and hyperfine structure in 4s→4p transitions of stable Ti+ ions

IF 2.9 2区 物理与天体物理 Q2 Physics and Astronomy Physical Review A Pub Date : 2024-09-10 DOI:10.1103/physreva.110.032807
Tim Ratajczyk, Kristian König, Philipp Bollinger, Tim Lellinger, Victor Varentsov, Wilfried Nörtershäuser, Julien Spahn
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Abstract

We have measured transition frequencies, isotope shifts, and hyperfine-structure splittings in the 3d2(3F)4s4FJ3d2(3F)4p4GJ+1o transitions in stable Ti+ ions for J=32,52,72 using collinear laser spectroscopy. Ions were generated by laser ablation in a buffer-gas atmosphere and extracted into vacuum through a nozzle and a pair of radio-frequency funnels. The results obtained are of interest as reference values for on-line measurements of short-lived titanium isotopes and for astrophysical searches for temporal or spatial variations of the fine-structure constant α using quasar absorption spectra.

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稳定 Ti+ 离子 4s→4p 转变中的转变频率、同位素偏移和超精细结构
我们利用准线激光光谱法测量了稳定 Ti+ 离子中 J=32,52,72 的 3d2(3F)4s4FJ→3d2(3F)4p4GJ+1o跃迁中的跃迁频率、同位素位移和超精细结构分裂。离子是在缓冲气体环境中通过激光烧蚀产生的,并通过一个喷嘴和一对射频漏斗抽取到真空中。所获得的结果可作为在线测量短寿命钛同位素的参考值,以及利用类星体吸收光谱对精细结构常数α的时间或空间变化进行天体物理学搜索的参考值。
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来源期刊
Physical Review A
Physical Review A 物理-光学
CiteScore
5.40
自引率
24.10%
发文量
0
审稿时长
2.2 months
期刊介绍: Physical Review A (PRA) publishes important developments in the rapidly evolving areas of atomic, molecular, and optical (AMO) physics, quantum information, and related fundamental concepts. PRA covers atomic, molecular, and optical physics, foundations of quantum mechanics, and quantum information, including: -Fundamental concepts -Quantum information -Atomic and molecular structure and dynamics; high-precision measurement -Atomic and molecular collisions and interactions -Atomic and molecular processes in external fields, including interactions with strong fields and short pulses -Matter waves and collective properties of cold atoms and molecules -Quantum optics, physics of lasers, nonlinear optics, and classical optics
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