improved temporal resolution, at the expense of spectral information. Here, we report on the
use of femtosecond temporal spectroscopy (FTS) to yield accurate spectral information
(vibrational and rotational) and to invert directly to the potential energy curve. As an
example, we present the FTS analysis, inversion to the potential, and confirmatory wave
packet calculations for the B 3 Π 0+ u state of molecular iodine.