The absorption spectrum of NaNa from 350 to 1075 nm

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Abstract
The authors have measured the NaNa absorption coefficient in absolute units over the 350-1075 nm wavelength region for temperatures between 1000 and 1500 K. The authors observe, among many other bands, the b(1)3+g from a(1)3+u transition for the first time in absorption. In this entire spectral region the NaNa absorption coefficients is compared, in absolute units, with semiclassical Szudy-Baylis calculations using potentials and transition dipole moments known from the literature. There is good agreement between experiments and calculations, after slightly shifting (250 cm-1) some of these potentials.