Studies of E-Beam Pumped Molecular Lasers

The authors have observed intense band emissions between 340 nm 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, the authors have measured the...

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Bibliographic Details
Main Authors: McCusker, M V, Hill, R M, Huestis, D L, Lorentz, D C, Gutcheck, R A
Format: Report
Language:English
Subjects:
ARGON LASERS
Atomic and Molecular Physics and Spectroscopy
ELECTRON BEAMS
ELECTRON IRRADIATION
ELECTRON TRANSITIONS
ELECTRONIC STATES
EXCITATION
FLUORESCENCE
GAS LASERS
IODINE
Lasers and Masers
MOLECULAR ENERGY LEVELS
MOLECULAR LASERS
NITROGEN
RARE GASES
ULTRAVIOLET LASERS
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Summary:The authors have observed intense band emissions between 340 nm 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, the authors have measured the fluorescence yield in this wavelength region to be 70 plus or minus 24%. From this, an over-all fluorescence energy efficiency of 13 plus or minus 4% was computed. Based on these observations, it is suggested 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. Sponsored in part by DARPA. See also report dated 31 Jan 1975, ADA009284.