Abstract

An apparatus for measuring the fluorescence excitation spectra of gaseous molecules in very high magnetic fields generated by a water-cooled resistive magnet has been developed. Spectra due to the A 2Σ + (v ′=0)– X 2Π (v″=0) transition of NO were measured in magnetic fields up to 25 T. The spectra show complicated line structures due to large Zeeman splitting in both the A 2 Σ + and X 2 Π states. The transition energies and line intensities were calculated using Hund's case (a) basis set to assign the observed lines.

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