Laser isotope separation by multiple photon absorption

Details Laser isotope separation by multiple photon absorption Laser isotope separation by multiple photon absorption

1975-04-22

1977-09-20

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

204DIG11, B01J 110

Patent

active

040495159

ABSTRACT:
Multiple photon absorption from an intense beam of infrared laser light may be used to induce selective chemical reactions in molecular species which result in isotope separation or enrichment. The molecular species must have a sufficient density of vibrational states in its vibrational manifold that, in the presence of sufficiently intense infrared laser light tuned to selectively excite only those molecules containing a particular isotope, multiple photon absorption can occur. By this technique, for example, intense CO.sub.2 laser light may be used to highly enrich .sup.34 S in natural SF.sub.6 and .sup.11 B in natural BCl.sub.3.

REFERENCES:
patent: 3937956 (1976-02-01), Lyon
patent: 3951768 (1976-04-01), Guys
Applied Physics Letters, vol. 14, No. 12 (June 15, 1969) pp. 376-378.
Ambartzumian et al., Applied Optics, vol. 11, No. 2, (Feb. 1972) pp. 354-358.
Karlov, Applied Optics, vol. 13, No. 2 (Feb. 1974) pp. 301-309.
Ambartzumian et al., JETP Letters, vol. 21 (Mar. 20, 1975) pp. 375-378.

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