The hyperfine structure of I-129(2) and I-127 I-129 in the B-3 Pi(+)(0u)-X-1 Sigma(+)(g) band system

摘要

In a double saturation spectroscopy experiment, using the radiation from one single frequency cw laser, the spectra of 129 I 2 and 127 I 129 I from one saturation setup were recorded simultaneously and with respect to the spectrum of 127 I 2 from another setup while tuning the laser. The hyperfine patterns of 129 I 2 and 127 I 129 I were analysed to determine the nuclear electric quadrupole interaction and the nuclear spin-rotation interaction parameters. Models are presented describing the observations and giving reliable predictions for the hyperfine parameters of all isotopomers.