Song Min, Yi Peng, Dai Xing-can, Liu Yao-ming, Li Li
Department of Physics and Key Lab of Atomic and Molecular Nanosciences, Tsinghua University, Beijing 100084, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2002 Jun;22(3):363-7.
With pulsed optical-optical double resonance (OODR) fluorescence excitation spectroscopy Rydberg states of 7Li2 in the energy region of 35,500-38,000 cm-1 were studied and 146 transitions into the 3(1) pi g state of 7Li2 were measured. They were assigned to 10 vibrational levels of the 3(1) pi g state. A new set of Dunham constants, RKR potential curve, and Franck-Condon factors for the transitions form the A 1 sigma u+ state are derived. The perturbations between the 4(F)1 sigma g+, 5 (1) sigma g+, 6 (1) sigma g+, 2 (G) 1 pi g Rydberg states with the 3 (1) pi g state are discussed. The lambda-doubling splitting of the observed levels can be ignored with our accuracy (0.2 cm-1).
利用脉冲光-光双共振（OODR）荧光激发光谱，研究了7Li2在35500 - 38000 cm-1能量区域的里德堡态，并测量了146条跃迁到7Li2的3(1)πg态的跃迁。它们被指定到3(1)πg态的10个振动能级。推导了一组新的邓纳姆常数、RKR势曲线以及从A 1σu+态跃迁的弗兰克-康登因子。讨论了4(F)1σg+、5(1)σg+、6(1)σg+、2(G)1πg里德堡态与3(1)πg态之间的微扰。在所达到的精度（0.2 cm-1）下，观测能级的λ-双重分裂可以忽略不计。
