Radiative lifetime of the 𝐴2Π1/2 state in RaF with relevance to laser cooling
Athanasakis-Kaklamanakis, M., Wilkins, S. G., Lassègues, P., Lalanne, L., Reilly, J. R., Ahmad, O., Au, M., Bai, S. W., Berbalk, J., Bernerd, C., Borschevsky, A., Breier, A.A., Chrysalidis, K., Cocolios, T. E., de Groote, R. P., Fajardo-Zambrano, C. M., Flanagan, K. T., Franchoo, S., Garcia Ruiz, R. F., . . . Yang, X. F. (2024). Radiative lifetime of the 𝐴2Π1/2 state in RaF with relevance to laser cooling. Physical Review A, 110(1), Article L010802. https://doi.org/10.1103/PhysRevA.110.L010802
Julkaistu sarjassa
Physical Review APäivämäärä
2024Tekijänoikeudet
© 2024 the Authors
The radiative lifetime of the 𝐴2Π1/2 (𝑣=0) state in radium monofluoride (RaF) is measured to be 35(1) ns. The lifetime of this state and the related decay rate Γ=2.86(8)×107 s−1 are of relevance to the laser cooling of RaF via the optically closed 𝐴2Π1/2 ← 𝑋2Σ1/2 transition, which makes the molecule a promising probe to search for new physics. RaF is found to have a comparable photon-scattering rate to homoelectronic laser-coolable molecules. Owing to its highly diagonal Franck-Condon matrix, it is expected to scatter an order of magnitude more photons than other molecules when using just three cooling lasers, before it decays to a dark state. The lifetime measurement in RaF is benchmarked by measuring the lifetime of the 8𝑃3/2 state in Fr to be 83(3) ns, in agreement with literature.
Julkaisija
American Physical SocietyISSN Hae Julkaisufoorumista
2469-9926Asiasanat
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https://converis.jyu.fi/converis/portal/detail/Publication/233261538
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Euroopan komissioRahoitusohjelmat(t)
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Lisätietoja rahoituksesta
This project has received funding from the European Union's Horizon Europe Research and Innovation programme EUROLABS under Grant Agreement No. 101057511 and the European Union's Horizon 2020 research and innovation programme under Grant Agreement No. 654002. Financial support from FWO, as well as from the Excellence of Science (EOS) programme (No. 40007501) and the KU Leuven Project No. C14/22/104, is acknowledged. The STFC consolidated Grants No. ST/V001116/1 and No. ST/P004423/1 and the FNPMLS ERC Grant Agreement No. 648381 are acknowledged. S.G.W. and R.F.G.R. acknowledge funding by the Office of Nuclear Physics, US Department of Energy Grants No. DE-SC0021176 and No. DE-SC002117. M. Au, A.R., J.Wa., and J.We. acknowledge funding from the EU's H2020-MSCA-ITN Grant No. 861198 “LISA.” D.H. acknowledges financial support from the Swedish Research Council (2020-03505). J.L. acknowledges financial support from STFC Grant No. ST/V00428X/1. S.W.B., Y.C.L., W.C.M., and X.F.Y. acknowledge support from the National Natural Science Foundation of China (No. 12350007). ...Lisenssi
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