Method of and means for producing radiation in the X-ray region

Details Method of and means for producing radiation in the X-ray region Method of and means for producing radiation in the X-ray region

1974-05-29

1977-07-05

Webster, Robert J.

Radiant energy

Radiant energy generation and sources

331 945P, 331 945G, 330 43, H01S 400

Patent

active

040342263

ABSTRACT:
A method for producing stimulated emission of radiation in the X-ray region comprising the steps of: selecting as an active medium a system having the following properties; two energy levels separated by an energy difference .DELTA.E corresponding to radiation of frequency .omega..sub.t in the X-ray region such that a transition from the upper to the lower of the two levels by one-photon emission is weakly allowed or strictly forbidden, one of the two levels having a nearly degenerate partner level optically coupled thereto such that a transistion therebetween by one-photon emission has a high probability; providing a resonator containing such an active medium; subjecting the active medium in the resonator to stimulating radiation at a frequency .omega..sub.1 that is preferably, substantially equal to the frequency of the optical coupling between the nearly degenerate levels but much smaller than the frequency .omega..sub.t ; arranging for the polarization of the stimulating radiation to be parallel to the polarization of the output of the resonator; and turning the resonator to the frequency .omega..sub.2 = .omega..sub.t .+-. .omega..sub.1.

REFERENCES:
slutz et al., Univ. of Calif. Res. Lab - 74959 Report (Conf-731009 - 12, Oct. 26, 1973.
Freund, Applied Physics Letters, vol. 24, No. 1, Jan. 1, 1974, pp. 13 thru 15.
Braunlich et al., Physical Review A, vol. 5, No. 3, Mar. 1972, pp. 1013-1025.

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