Deflection of atomic beams with isotope separation by optical re

Details Deflection of atomic beams with isotope separation by optical re Deflection of atomic beams with isotope separation by optical re

1976-01-02

1977-09-06

Church, Craig E.

Radiant energy

Electrically neutral molecular or atomic beam devices and...

H01S 100

Patent

active

040470261

ABSTRACT:
Improved atomic beam deflection and improved isotope separation, even in vapors, is proposed by substituting the A.C. Stark effect for the baseband chirp of the pushing beam in the prior proposal by I. Nebenzahl et al, Applied Physics Letters, Vol. 25, page 327 (September 1974). The efficiency inherent in re-using the photons as in the Nebenzahl et al proposal is retained; but the external frequency chirpers are avoided. The entire process is performed by two pulses of monochromatic coherent light, thereby avoiding the complication of amplifying frequency-modulated light pulses. The A.C. Stark effect is provided by the second beam of coherent monochromatic light, which is sufficiently intense to chirp the energy levels of the atoms or isotopes of the atomic beam or vapor. Although, in general, the A.C. Stark effect will alter the isotope shift somewhat, it is not eliminated. In fact, the appropriate choice of frequencies of the pushing and chirping beams may even relax the requirements with respect to the isotope absorption line shift for effective separation. That is, it may make the isotope absorption lines more easily resolvable.

REFERENCES:
patent: 3558877 (1971-01-01), Pressman
patent: 3710279 (1973-01-01), Ashbin
"Deflection of Atomic Beams by Resonance Radiation Using Stimulated Emission," Nebenzahl, Applied Physics Letters vol. 25, No. 6, Sept. 15, 1974 pp. 327-329.

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