Spectroscopic Analysis of the Triplet States of Na2

Perturbation facilitated optical-optical double resonance spectra of Na2from 23Σ+g(ν=15,N=27), 23Πg(ν=11,J=11) and 43Πg(ν=12,J=23) states toa3Σ+uare analyzed using inverse perturbation approach, WKB nodes method and Franck-Condon factor phase method. Electronic potential energy curves for these states and the corresponding electronic transition dipole moments are determined. Spectra thus evaluated are compared with experimental results.