Optically pumped laser action in dideuteroacetylene

Investigation of the kinetics of stimulated emission using four-photon parametric interaction

“…More recently, new transitions in the NH3 and C2D2 OPML'S have been excited by a continuously tunable discharge CO2 laser (Deka et aZ1980a, b). These two OPML'S are not typical, having both strong pump and laser bands, and therefore low threshold pump powers and short buildup times (Tiee andWittig 1978, Rutt andGreen 1978). Also, being relatively simple molecules, the frequencies of their laser transitions are well separated.…”

Demonstration of laser action and superfluorescence in CF4optically pumped by a continuously tunable CO2laser

“…More recently, new transitions in the NH3 and C2D2 OPML'S have been excited by a continuously tunable discharge CO2 laser (Deka et aZ1980a, b). These two OPML'S are not typical, having both strong pump and laser bands, and therefore low threshold pump powers and short buildup times (Tiee andWittig 1978, Rutt andGreen 1978). Also, being relatively simple molecules, the frequencies of their laser transitions are well separated.…”