Two-photon bound-bound atomic transitions induced by LG beams

We report theoretical results for the transition amplitudes of two-photon transitions induced in a one-activeelectron atomic system by a LG(10) beam. We identify the excitation pathways for selected two-photon transitions starting from the ground state of the atomic system. We numerically evaluate these two-photon transition matrix elements for selected transitions in Ca+ employing the truncated summation method. We provide a comparison with corresponding transitions induced by a Gaussian beam and present an estimation of the relative strength when the two different types of light beams are employed.

Automated summary

We present theoretical results on the transition amplitudes of two-photon transitions induced by a LG(10) beam in a one-activeelectron atomic system. Excitation pathways for selected two-photon transitions starting from the ground state are identified. Numerical evaluations of these transitions in Ca+ are conducted using the truncated summation method. A comparison with Gaussian beam-induced transitions is provided, along with an estimation of the relative strength when employing the two different types of light beams.