Line Plot from Scientific Research

Hyperfine-structure (HFS) spectrum of the 1 s 2 s 3 S 1 (to) 1 s 2 p 3 P 0,1,2 transitions in 13 C 4+ simulated with the experimentally determined frequencies and linewidths. The x -axis represents the laser frequency in the rest-frame of the ion ν relative to the center-of-gravity frequency of the respective fine-structure transition. The peak heights were set to the theoretical transition strengths used in Eq. ( 7 ). The two insets show measured spectra of the marked transitions. Next to the resonances, the contributing quantum numbers Fto {F}^{{\prime} } of the lower and upper states are shown, respectively.

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