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Collisional narrowing in the optically pumped CH<inf>3</inf>OH and CH<inf>3</inf>F lasers

1982; IEEE Photonics Society; Volume: 18; Issue: 7 Linguagem: Inglês

10.1109/jqe.1982.1071652

1558-1713

N. M. Lawandy, Gerhard A. Koepf,

Atomic and Subatomic Physics Research

The gain linewidth of the optically pumped CH 3 F laser is observed to narrow and rebroaden with the addition of He. In addition, we observe the same effect in the CH 3 OH laser with the addition of the polyatomic buffer gases SF 6 and CS 2 . These results offer conclusive evidence of the Dicke narrowing phenomena in these inverted pure rotational transitions. The effect is observed using a high harmonic mixing technique in a Schottky barrier diode.