High-precision measurements of the hyperfine structure of cobalt ions in the deep ultraviolet range

Abstract

Abstract High-precision hyperfine structure measurements were performed on stable, singly-charged $$^{59}$$ 59 Co ions at the IGISOL facility in Jyväskylä, Finland using the collinear laser spectroscopy technique. A newly installed light collection setup enabled the study of transitions in the 230 nm wavelength range from low-lying states below 6000 cm $$^{-1}$$ - 1 . We report a 100-fold improvement on the precision of the hyperfine A parameters, and furthermore present newly measured hyperfine B paramaters.