High resolution photoassociation spectroscopy of the excited c3  + 1 potential of 23Na133Cs

Picard, Lewis R. B.; González Férez, María Rosario

PhysRevResearch.5.023149.pdf (870.3Kb)

Identificadores

URI: https://hdl.handle.net/10481/83977

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Editorial

American Physical Society

Fecha

2023-06-05

Referencia bibliográfica

Lewis R. B. Picard, Jessie T. Zhang, William B. Cairncross, Kenneth Wang, Gabriel E. Patenotte, Annie J. Park, Yichao Yu, Lee R. Liu, Jonathan D. Hood, Rosario González-Férez, and Kang-Kuen Ni Phys. Rev. Research 5, 023149[DOI:https://doi.org/10.1103/PhysRevResearch.5.023149]

Patrocinador

NSF (Grant No. PHY-2110225), the AFOSR (Grant No. FA9550-19-1-0089); Grant No. TC-18-003). J.T.Z. was supported by a National Defense Science and Engineering Graduate Fellowship.; Spanish Projects No. PID2020-113390GB-I00 (MICIN), No. PY20-00082 (Junta de Andalucía),; A-FQM-52-UGR20 (ERDF–University of Granada) and Andalusian Research Group FQM-207

Resumen

We report on photoassociation spectroscopy probing the c 3 Σ + 1 potential of the bialkali NaCs molecule, identifying 11 vibrational lines between v ′ = 0 and v ′ = 25 of the excited c 3 Σ + 1 potential and fitting their rotational and hyperfine structure. The observed lines are assigned by fitting to an effective Hamiltonian model of the excited-state structure with rotational and hyperfine constants as free parameters. We discuss unexpected broadening of select vibrational lines and its possible link to strong spin-orbit coupling of the c 3 Σ + 1 potential with the nearby b 3 Π 1 and B 1 Π 1 manifolds. Finally, we report use of the v ′ = 22 line as an intermediate state for two-photon transfer of weakly bound Feshbach molecules to the rovibrational ground state of the X 1 Σ + manifold.

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