Detection of barium 6 sng→6 snh, 6 sni, and 6 snk microwave transitions using selective excitation to autoionizing states

We use selective laser excitation to an autoionizing state to observe the microwave transitions of Ba from the 6sng Rydberg states to the 6snh, 6sni, and 6snk states for 15≤n≤18. We extract the dipole and quadrupole polarizabilities of Ba+ from the measured intervals of the Ba 6sn states of 5 using...

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Bibliographic Details
Main Authors: Kim E.G., Nunkaew J., Gallagher T.F.
Format: Article
Language:English
Published: American Physical Society 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-84902108606&partnerID=40&md5=2e45cd3fa54a1c6d832d6109895ab616
http://cmuir.cmu.ac.th/handle/6653943832/4865
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Institution: Chiang Mai University
Language: English
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Summary:We use selective laser excitation to an autoionizing state to observe the microwave transitions of Ba from the 6sng Rydberg states to the 6snh, 6sni, and 6snk states for 15≤n≤18. We extract the dipole and quadrupole polarizabilities of Ba+ from the measured intervals of the Ba 6sn states of 5 using a nonadiabatic core polarization model. The values we determine for the dipole and quadrupole polarizabilities are αd=124.81(25)a03 and αq=2478(50)a05, respectively. © 2014 American Physical Society.