Abstract

A visible cadmium-ion recombination laser based on an electron–ion recombination pumping mechanism is reported. Laser oscillation is observed in the 4f ²F_7/2–5d ²D_5/2 and 4f ²F_5/2–5d ²D_3/2 transitions of Cd ii over a range of discharge parameters in the presence of low-pressure helium gas in a sealed discharge tube. Laser oscillation in a sealed discharge tube using a simple capacitor discharge is reported for the first time to the authors’ knowlege.

© 1987 Optical Society of America

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