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The hyperfine resolved spectrum of the a4Σ- 3/2 -X12Π3/2 electronic transition of AuS has been recorded in the near infrared region. The molecules were produced via sputtering in a hollow gold cathode. Previous lower resolution spectroscopy revealed a vibrational progression from the (0,0) to (5,0) bands covering the region from 821 to 721 nm. Drawing upon this work, the (0,0), (1,0), and (2,0) bands were re-recorded, first at Doppler-limited and then sub-Doppler resolution, using a continuous-wave Ti:sapphire ring laser. Transitions energies were entered into a least squares fitting routine that calculated rotational and hyperfine constants of the two electronic states.
Parsons, Austin, "Rotational and hyperfine spectroscopy of diatomic gold monosulfide, AuS" (2017). Chemistry Honors Projects. 29.
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