Fields, G.Zhang, X.Dunning, F.B.Yoshida, S.Burgdörfer, J.2018-07-112018-07-112018Fields, G., Zhang, X., Dunning, F.B., et al.. "Autoionization of very-high-n strontium Rydberg states." <i>Physical Review A,</i> 97, no. 1 (2018) American Physical Society: https://doi.org/10.1103/PhysRevA.97.013429.https://hdl.handle.net/1911/102392We study, using a combination of experiment and theory, the excitation and decay of very-high-n(n∼280–430) strontium autoionizing Rydberg states formed by near-resonant driving of the 5s2S1/2→5p2P1/2 core-ion transition. The branching ratio between decay through radiative transitions and through autoionization is explored. Autoionization rates are measured as a function of both the nand ℓ quantum numbers of the Rydberg electron. The nonstationary decay dynamics is studied by creating and manipulating Rydberg wave packets and by varying the laser pulse that drives the core excitation.engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articlehttps://doi.org/10.1103/PhysRevA.97.013429