We present a high-resolution analysis of the six electronic states that share the same dissociation limit with the second excited electronic state B in molecular iodine. These six states are coupled to the B state via hyperfine interactions. The four hyperfine parameters, C_B, delta_B, d_B, and eqQ_B, are calculated with the available potential energy curves and wave functions constructed from the separated-atom basis set. We obtain a maximum separation of the respective contributions from all six electronic states and compare each individual contribution with high-precision spectroscopic data, providing an independent verification of the relevant electronic structure.
© 2005 Optical Society of America
(020.2930) Atomic and molecular physics : Hyperfine structure
(300.6190) Spectroscopy : Spectrometers
(300.6390) Spectroscopy : Spectroscopy, molecular
(300.6460) Spectroscopy : Spectroscopy, saturation
Lisheng Chen, Wibe A. de Jong, and Jun Ye, "Characterization of the molecular iodine electronic wave functions and potential energy curves through hyperfine interactions in the B0+_u(3Pi_u) state," J. Opt. Soc. Am. B 22, 951-961 (2005)