Collisional Line Assignments and Hyperfine Structure Interpretation in Cs2 23△1g State
- Received Date: 2012-12-14
Abstract: Accurately known energy level structure of the Cs2 A1∑+u -b3Πu complex of states from a recent global de-perturbation of these states has enabled additional assignments of 140 per-turbation facilitated infrared-infrared double resonance (PFIIDR) transitions to the 23△1g state from collisionally populated intermediate A1∑+u levels. Together with the 221 previ-ously observed 23△1g←A1∑+u← X1∑+g double resonance lines [J. Chem. Phys. 128, 204313 (2008)], molecular constants and the Rydberg-Klein-Rees potential energy curve of the 23△1g state have been recalculated (excluding 54 perturbed levels). The centrifugal distortion con-stant has been determined and agrees well with the value calculated based on standard empirical formulas. The hyperfine structure of the 23△1g state, which has not resolved in our sub-Doppler excitation spectra of the 23△1g state, has been interpreted with a preliminary simulation.
|Citation:||Dan Li, Feng Xie, Li Li, Ergin H. Ahmed, A. Marjatta Lyyra. Collisional Line Assignments and Hyperfine Structure Interpretation in Cs2 23△1g State[J]. Chinese Journal of Chemical Physics , 2013, 26(1): 13-19. doi: 10.1063/1674-0068/26/01/13-19|