A tunable visible and ultraviolet laser on S2 (<i>B</i>3Σ<i>u</i>−–<i>X</i>3Σ<i>g</i>−)

Abstract

Laser action has been achieved on the B3Σu−–X3Σg− transition of S2 by optical pumping with a frequency-doubled dye laser and a nitrogen laser. The observed lasing is line tunable from 365 to 570 nm. The S2 molecule is a promising candidate for an efficient scalable ultraviolet laser system.