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Honors Project On-Campus Access Only


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.



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