Oscillators – Molecular or particle resonant type
Patent
1977-12-19
1981-06-30
Davie, James W.
Oscillators
Molecular or particle resonant type
331 945G, H01S 3091
Patent
active
042765170
ABSTRACT:
A CO.sub.2 medium is optically pumped by a five micron CO laser to the 03'0 level which radiates with 16 micron emission to the 02.degree.0 level. The resulting 16 micron laser finds application in laser uranium enrichment operating to provide excitation of uranium hexafluoride particles. Terminal level blockage, or bottlenecking, in the 02.degree.0 level is optionally avoided for continuous mode operation by 10 micron excitation with a CO.sub.2 laser from the 02.degree.0 to the 00.degree.1 level. The CO.sub.2 is then diluted by mixing nitrogen gas with it to promote energy transfer to the V=1 vibrational level of the nitrogen, thereby insuring maintenance of the inversion necessary for efficient, high power lasing in the 03'0 to 02.degree.0 transition.
REFERENCES:
patent: 4053852 (1977-10-01), Krupke
patent: 4136317 (1979-01-01), Stregack et al.
D. K. Rice, "Carbon Monoxide Spectral Line Selection Studies", Northrup Corporation Technical Report, NLSD 72-13R, Aug. 1972, pp. 44-55.
R. M. Osgood, Jr., "Optically Pumped 16 .mu.m CO.sub.2 Laser" Applied Physics Letters, vol. 28, No. 6, Mar. 15, 1976, pp. 342-347.
T. J. Manuccia et al., "14-and 16-.mu. Gasdynamic CO.sub.2 Lasers", Applied Physics Letters, vol. 29, No. 6, Sep. 15, 1976, pp. 360-362.
W. H. Kasner et al., "Electrical Discharge Excited 16 .mu.m CO.sub.2 Laser", 1977 IEEE/OSA Conference on Laser Engineering and Applications, Digest of Technical Papers, Jun. 1-3, 1977, p. 12.
Davie James W.
Jersey Nuclear-AVCO Isotopes, Inc.
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