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Abstract
Irradiation of a gaseous discharge with a tunable laser produces observable voltage changes at wavelengths that correspond to electronic transitions for species within the discharge. Optogalvanic (OG) transitions of neon have been investigated in the visible and near UV regions by axially irradiating a hollow cathode discharge with an excimer-pumped dye laser. A variety of OG transitions that originate from metastable states have been recorded. A digital oscilloscope was used to record the waveforms of the OG transitions. The polarities of 29 OG transitions recorded in the near UV and visible are explained in terms of processes that affect the population of neon atoms in metastable states.