Experimental study of the 39K2 2 3Pi(g) state by perturbation facilitated infrared-infrared double resonance and two-photon excitation spectroscopy.
The 39K2 2 3Pi(g) state has been observed by perturbation facilitated infrared-infrared double resonance and two-photon excitations. The vibrational numbering of the 2 3Pi(g) levels was determined by resolved fluorescence into the bound levels as well as to the continuum of the a 3Sigma(u)+ state. The rotational assignment of the 2 3Pi(g) levels excited by two-photon transitions was determined from excitation frequencies and resolved fluorescence into the bound levels of the a 3Sigma(u) + and b 3Pi(u) states. Molecular constants obtained from these observed levels agree with theoretical constants.
Chu
Yizhuo
Y
Department of Physics and Key Lab of Atomic and Molecular Nanosciences, Tsinghua University, Beijing 100084, China.
Xie
Feng
F
Li
Dan
D
Li
Li
L
Sovkov
V B
VB
Ivanov
V S
VS
Lyyra
A M
AM