Competition between stimulated emission and absorption losses from the B state in I2 lasers
- 1 November 1981
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 75 (9) , 4271-4274
- https://doi.org/10.1063/1.442630
Abstract
The optical gains observed in molecular iodine lasers are the result of competition between stimulated emission and absorption losses from the excited B electronic state. The ratio of the cross sections for stimulated emission and absorption is ∼2.5 (v″ = odd) and ∼1.0 (v″ = even) for v′ = 43→v″ = 7–15. The correct consideration of this competition removes the apparent anomaly of nonobservable laser emission to v″ = even in this spectral region.Keywords
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