Lifetimes and Franck-Condon factors for the system of Na2

Analysis and Transition Probabilities for the Na2B1Πu→X1Σ+gSystem Using as Excitation the 4727-Å Ar+Laser Line

“…As can be seen from the data in Table 1 (15). These values of the electronic transition moment agree with the experimental results reported by Hessel (13) and Demtröder (14) for our work range. Tensionated spline fits were used to make the electronic transition dipole moment function continuous.…”

“…For the B-X band system of Na 2 there are at least two important studies reporting the variation of the electronic transition dipole moment with internuclear distance based on experimental data (13,14). The former obtains a dipole moment function from intensities of the lines and the latter from lifetime values.…”

Theoretical study of the absorption spectra of the sodium dimer

“…Rotationally resolved lifetimes for the B 1 Π u state have been measured by Demtröder et al [47]. Demtröder et al found that the lifetimes for the B 1 Π u state are sensitive to the slope of the transition dipole moment function in the range of internuclear separation from, roughly, 4 < R < 10 a 0 and they obtained an empirical value for the function that we found to be in good agreement with the transition dipole moment function of Stevens et al [41].…”

Laser-Induced Irradiance Fluorescence of Molecular Sodium Excited by the 4765 Å Ar+ Laser Line

“…The considered values of transition dipole moment have been taken from the works by Demtröder et al and Stevens et al (9,10). Some of these excitations are intense and others are weak.…”