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
Citation: Dan Li, Feng Xie, Li Li, Ergin H. Ahmed, A. Marjatta Lyyra. Collisional Line Assignments and Hyperfine Structure Interpretation in Cs2 231g State[J]. Chinese Journal of Chemical Physics , 2013, 26(1): 13-19. doi: 10.1063/1674-0068/26/01/13-19

Collisional Line Assignments and Hyperfine Structure Interpretation in Cs2 231g State

doi: 10.1063/1674-0068/26/01/13-19
Funds:  This work was supported by the National Natural Science Foundation of China (No.11004117), the Foun-dation of Laboratory of Tsinghua University, and US National Science Foundation award PHY for Temple University (No.1205903). We are pleased to acknowl-edge fruitful discussions with Prof. J. Huennekens of Lehigh University and Dr. Jianbing Qi of Penn State Berks.
  • Received Date: 2012-12-14
  • 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 231g state from collisionally populated intermediate A1+u levels. Together with the 221 previ-ously observed 231g←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 231g 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 231g state, which has not resolved in our sub-Doppler excitation spectra of the 231g state, has been interpreted with a preliminary simulation.
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Collisional Line Assignments and Hyperfine Structure Interpretation in Cs2 231g State

doi: 10.1063/1674-0068/26/01/13-19
Funds:  This work was supported by the National Natural Science Foundation of China (No.11004117), the Foun-dation of Laboratory of Tsinghua University, and US National Science Foundation award PHY for Temple University (No.1205903). We are pleased to acknowl-edge fruitful discussions with Prof. J. Huennekens of Lehigh University and Dr. Jianbing Qi of Penn State Berks.

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 231g state from collisionally populated intermediate A1+u levels. Together with the 221 previ-ously observed 231g←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 231g 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 231g state, which has not resolved in our sub-Doppler excitation spectra of the 231g state, has been interpreted with a preliminary simulation.

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
Citation: Dan Li, Feng Xie, Li Li, Ergin H. Ahmed, A. Marjatta Lyyra. Collisional Line Assignments and Hyperfine Structure Interpretation in Cs2 231g State[J]. Chinese Journal of Chemical Physics , 2013, 26(1): 13-19. doi: 10.1063/1674-0068/26/01/13-19

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