Oscillators – Molecular or particle resonant type
Patent
1967-02-16
1977-03-08
Wilbur, Maynard R.
Oscillators
Molecular or particle resonant type
330 43, H01S 309, H01S 322
Patent
active
040115216
ABSTRACT:
In a laser, a gaseous mixture is suitably heated to a first temperature and at a first pressure to provide a large energy content. The gaseous mixture comprises a polyatomic gas such as carbon dioxide having an upper level, ground state, and intermediate level. It also comprises at least one auxiliary gas such as nitrogen, having an energy level substantially resonant with one of the above-mentioned levels and a relaxation time operative to increase the ratio of the relaxation time of the upper level to that of the lower level. A chamber receives the mixture via a supersonic nozzle proportioned to provide a flow time short compared to the relaxation time of the upper level and long compared to the relaxation time of the lower level and the gas is throttled to a relative low second gas temperature and pressure, whereby population inversion exists in the chamber. An optical resonator defines a light path beam through the gaseous medium in the chamber.
REFERENCES:
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patent: 3302127 (1967-01-01), Lin
patent: 3543179 (1970-11-01), Wilson
Flesher, et al., Submillimeter Gas Laser, in Proceedings of the IEEE, vol. 54, No. 4, Apr. 1966, pp. 543-546.
Patel, "Selective Excitation Through Vibrational Energy Transfer . . . - N.sub.2 CO.sub.2," Nov. 23, 1964, pp. 617-619., Ply. Rev. Let., vol. 13, No. 21.
Patel, "CW Laser Action in N.sub.2 O," Jan. 1 1965, pp. 12-13, Appl. Phys. Lett., vol. 6, No. 1.
Hurle, et al., "Electronic Population Immersions by Fluid Mechanical Techniques," Sept. 1965, pp. 1601-1609, Phys. of Fluids, vol. 8, No. 9.
Konyukhov, et al., ZhRTF Pis. Red. 3, 436, 1966 [JETP Lett., 3,286 (1966)].
Gerry Edward T.
Kantrowitz Arthur R.
Leonard Donald A.
Wilson Jack
Avco Corporation
Frederick Melvin E.
Hogan Charles M.
Moskowitz N.
Wilbur Maynard R.
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