Laser excited molecular beam time and frequency standard

Details Laser excited molecular beam time and frequency standard Laser excited molecular beam time and frequency standard

1980-03-27

1982-04-06

Sikes, William L.

Coherent light generators

Particular beam control device

Optical output stabilization

H01S 313

Patent

active

043238602

ABSTRACT:
A laser excited molecular beam time and frequency standard utilizing a first electromagnetic beam at a first preselected frequency to excite a molecular beam at a first preselected point along the beam in order to produce fluorescence. A second electromagnetic beam (produced from either a different electromagnetic source than utilized to produce the first beam or produced from a portion of the first beam) at a second preselected frequency excites the molecular beam at a second preselected point along the beam to produce fluorescence. By locking the frequency of the first and second electromagnetic beams to specific resonant frequencies, a time and frequency standard can be produced.

REFERENCES:
patent: 3686585 (1972-08-01), Javan et al.
patent: 3755678 (1973-08-01), Javan
patent: 4121178 (1978-10-01), Schlossberg
Grove et al., Measurement of the Spectrum of Resonance Fluorescence from a Two-Level-Atom in an Intense Monochromatic Field, Phys. Rev. A, V15, N1 (Jan. 1977).
Hellwig, Atomic Frequency Standards: A Survey, Proc. IEEE, vol. 63, No. 2, (Feb. 1975), pp. 212-228.
Picque, Hyperfine Optical Pumping of a Cesium Atomic Beam and Applications, Metrologia, 13, 1977, pp. 115-119.
Leiby et al., Molecular Beams and Effusive Flows, Am. J. Phys., vol. 47, No. 9, (Sep. 1979), pp. 791-796.
Ramsey, Molecular Beams, Oxford Press, London, 1956, Ch. 14.
Tamir, T., Ed., Topics in Applied Physics, Integrated Optics, vol. 7, Springer-Verlag, New York, 1975, Ch. 4.

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