SPONTANEOUS MODE SPLITTING AND FREQUENCY SHIFTING DUE TO COHERENT EFFECTS IN OPTICALLY PUMPED MOLECULAR LASERS.

R. G. Harrison, S C Mehendale

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A new kind of spontaneous mode-splitting is predicted for resonant (near resonant) pumped molecular lasers, resulting from pump field induced Rabi splitting of the emission line-shape. General conditions are presented for the occurrence of mode-splitting in homogeneously broadened systems. Results of detailed analysis pertaining to specific mid- and far-infrared lasing transitions in NH//3 show that such effects should be observable under typical experimental conditions as oscillatory instabilities in the emission. For the case of off-resonant (Raman) emission, pump-intensity dependent unidirectional cavity mode frequency shifting is predicted. This is confirmed for a CO//2 laser pumped 12. 08 mu m laser.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages30-35
Number of pages6
Volume667
Publication statusPublished - 1986

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    Harrison, R. G., & Mehendale, S. C. (1986). SPONTANEOUS MODE SPLITTING AND FREQUENCY SHIFTING DUE TO COHERENT EFFECTS IN OPTICALLY PUMPED MOLECULAR LASERS. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 667, pp. 30-35)