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The possibility of an efficient tunable molecular iodine laser near 340 nm

We have observed intense band emissions between 340 and 344 nm from electron-beam-excited mixtures of high-pressure argon gas and iodine vapor. This emission appears to be from molecular iodine. Using the 357.6-nm band from an Ar/N2 mixture as a calibration, we have measured the fluorescence yield i...

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Bibliographic Details
Published in:Applied physics letters 1975-09, Vol.27 (6), p.363-365
Main Authors: McCusker, M. V., Hill, R. M., Huestis, D. L., Lorents, D. C., Gutcheck, R. A., Nakano, H. H.
Format: Article
Language:English
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Summary:We have observed intense band emissions between 340 and 344 nm from electron-beam-excited mixtures of high-pressure argon gas and iodine vapor. This emission appears to be from molecular iodine. Using the 357.6-nm band from an Ar/N2 mixture as a calibration, we have measured the fluorescence yield in this wavelength region to be 70±24%. From this we computed an over-all fluorescence energy efficiency of 13±4%. Based on these observations, we suggest the feasibility of an efficient high-energy electron-beam-pumped argon-iodine laser. The gain of such an argon-iodine laser should be comparable to that of the Ar/N2 second positive laser.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.88478