Experimental studies of the NaCs 5(3)Π0 and 1(a)3Σ+ states

S Ashman; B McGeehan; C M Wolfe; C Faust; K Richter; J Jones; A P Hickman; J Huennekens

doi:10.1063/1.3689388

Experimental studies of the NaCs 5(3)Π0 and 1(a)3Σ+ states

J Chem Phys. 2012 Mar 21;136(11):114313. doi: 10.1063/1.3689388.

Authors

S Ashman¹, B McGeehan, C M Wolfe, C Faust, K Richter, J Jones, A P Hickman, J Huennekens

Affiliation

¹ Department of Physics, 16 Memorial Dr. East, Lehigh University, Bethlehem, Pennsylvania 18015, USA.

PMID: 22443770
DOI: 10.1063/1.3689388

Abstract

We report high resolution measurements of 372 NaCs 5(3)Π(0)(v, J) ro-vibrational level energies in the range 0 ≤ v ≤ 22. The data have been used to construct NaCs 5(3)Π(0) potential energy curves using the Rydberg-Klein-Rees and inverted perturbation approximation methods. Bound-free 5(3)Π(0)(v, J) → 1(a)(3)Σ(+) emission has also been measured, and is used to determine the repulsive wall of the 1(a)(3)Σ(+) state and the 5(3)Π(0) → 1(a)(3)Σ(+) relative transition dipole moment function. Hyperfine structure in the 5(3)Π(0) state has not been observed in this experiment. This null result is explained using a simple vector coupling model.