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Keller, Richard A.; Truesdell, Keith A.

Competition between stimulated emission and absorption losses from the B state in I2 lasers

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  • Media type: E-Article
  • Title: Competition between stimulated emission and absorption losses from the B state in I2 lasers
  • Contributor: Keller, Richard A.; Truesdell, Keith A.
  • Published: AIP Publishing, 1981
  • Published in: The Journal of Chemical Physics, 75 (1981) 9, Seite 4271-4274
  • Language: English
  • DOI: 10.1063/1.442630
  • ISSN: 0021-9606; 1089-7690
  • Keywords: Physical and Theoretical Chemistry ; General Physics and Astronomy
  • Origination:
  • Footnote:
  • Description: 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.