Microwave spectroscopy of the calcium 4snf → 4s(n + 1)d, 4sng, 4snh, 4sni, and 4snk transitions

© 2015 American Physical Society. We observe the microwave transitions of calcium from the 4snf states to the 4s(n + 1)d, 4sng, 4snh, 4sni, and 4snk states for 18 ≤ n ≤ 23 using delayed field ionization as the state selective detection technique. The observed intervals between the ℓ ≥ 5 states can b...

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Bibliographic Details
Main Authors: J. Nunkaew, T. F. Gallagher
Format: Journal
Published: 2018
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Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84929469281&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/54864
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Institution: Chiang Mai University
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Summary:© 2015 American Physical Society. We observe the microwave transitions of calcium from the 4snf states to the 4s(n + 1)d, 4sng, 4snh, 4sni, and 4snk states for 18 ≤ n ≤ 23 using delayed field ionization as the state selective detection technique. The observed intervals between the ℓ ≥ 5 states can be analyzed to extract the Ca<sup>+</sup> ionic dipole (α<inf>d</inf>) and quadrupole (α<inf>q</inf>) polarizabilities using two nonadiabatic core polarization models. Using these two models we determine the ionic dipole and quadrupole polarizabilities to be 75.3a<inf>0</inf><sup>3</sup> < α<inf>d</inf> < 76.9a<inf>0</inf><sup>3</sup> and 206a<inf>0</inf><sup>5</sup> < α<inf>q</inf> < 1590a<inf>0</inf><sup>5</sup>, respectively.