Systematical Measurement of Molecular Iodine Hyperfine Transitions in the Wavelength Range of 500-517 Nm

We report new measurement of the hyperfine spectra of molecular iodine BlarrX transitions in the wavelength range of 500-517 nm. Four effective hyperfine parameters, eqQ
_B
, C
_B
, d
_B
, and delta
_B
are determined for an extensive number of rovibrational levels in the B state, yielding rich information about the rotational and vibrational dependence of the hyperfine interactions. In particular, abnormal variations in the hyperfine parameters and strong u-g mixing at several levels are observed in this intermediate region