Oscillators – Molecular or particle resonant type
Patent
1978-06-05
1980-08-12
Davie, James W.
Oscillators
Molecular or particle resonant type
H01S 322
Patent
active
042175577
ABSTRACT:
A continuous wave hydrogen bromide (HBr) chemical laser is described, in which laser activity is produced by purely chemical means. Gaseous chlorine dioxide and gaseous nitric oxide are mixed and reacted to produce atomic chlorine. The atomic chlorine is reacted with gaseous molecular bromine to generate atomic bromine. The atomic bromine is reacted with gaseous hydrogen iodide to generate vibrationally excited hydrogen bromide by purely chemical means. The vibrationally excited hydrogen bromide is initially formed in such a way that the population of some of the energy states is inverted. The vibrationally excited HBr is itself lased in an optical resonator cavity, or may be used to transfer energy to another gas, such as carbon dioxide, for lasing action of that other gas. The present apparatus provides a flow channel, and separate injectors and injection means for the gaseous reactant materials chlorine dioxide, nitric oxide, bromine molecules and hydrogen iodide. A laser cavity whose central axis is positioned at about 90.degree. to the directional gas flow is located 1 cm downstream from the hydrogen iodide injectors.
REFERENCES:
patent: 4099140 (1978-07-01), Snelling et al.
Arnold et al., "A Purely Chemical HCl Laser," Applied Physics Letters, vol. 30, No. 12, 15 Jun. 1977, p. 637.
Arnold Sara J.
Foster Kenneth D.
Davie James W.
Her Majesty the Queen in right of Canada as represented by the
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