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

2024/05/08 by Ratajczyk, Tim, König, Kristian, Bollinger, Philipp +4 · 2 citations
#Atomic Physics (physics.atom-ph) #FOS: Physical sciences

paper · doi:10.48550/arxiv.2405.05084

Abstract

We have measured transition frequencies, isotope shifts and hyperfine structure splittings in the 3 d²( ³ F) 4 s ⁴ F_J→ 3 d²( ³ F) 4 p ⁴ G_J+1 transitions in Ti⁺ ions for J=(3)/(2), (5)/(2), (7)/(2) 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 radiofrequency (RF) funnels. The obtained results 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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