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An extensive survey of the D2 absorption spectrum has been performed with thehigh-resolution VUV Fourier-transform spectrometer of the DESIRS beamline atthe SOLEIL synchrotron. The frequency range of 90 000-119 000 cm-1 covers thefull depth of the potential wells of the B 1{\Sigma}+u, B' 1{\Sigma}+u, and C1{\Pi}u electronic states up to the D(1s) + D(2\ell) dissociation limit.Improved level energies of rovibrational levels have been determined up torespectively v = 51, v = 13, and v = 20. Highest resolution is achieved byprobing absorption in a molecular gas jet with slit geometry, as well as in aliquid helium cooled static gas cell, resulting in line widths of ~0.35 cm-1.Extended calibration methods are employed to extract line positions of D2 linesat absolute accuracies of 0.03 cm-1. The D1{\Pi}u and B" 1{\Sigma}+u electronicstates correlate with the D(1s) + D(3\ell) dissociation limit, but support afew vibrational levels below the second dissociation limit, respectively v =0-3 and v = 0-1, and are also included in the presented study. The complete setof resulting level energies is the most comprehensive and accurate data set forD2. The observations are compared with previous studies, both experimental andtheoretical.

VUV Fourier-transform absorption study of the Lyman and Werner bands in D2