Coherent light generators – Short wavelength laser
Patent
1989-09-29
1990-07-17
Scott, Jr., Leon
Coherent light generators
Short wavelength laser
372 76, H01S 330
Patent
active
049425803
ABSTRACT:
An x-ray laser comprising a first hydrogenic ion having a nuclear charge Z lasing on a 3-2 Balmer-.alpha. transition, a second hydrogenic ion having a nuclear charge Z/2 emitting Lyman-.alpha. and Lyman-.beta. photons, wherein n=2 electrons of the first hydrogenic ion are excited to the n=4 and n=6 level by resonance absorption of Lyman-.alpha. and Lyman-.beta. photons from the second hydrogenic ion. The invention results in an increase in population inversion and gain to saturation, an improvement in overall efficiency and an increase in plasma size.
REFERENCES:
patent: 4592056 (1986-05-01), Elton
patent: 4660203 (1987-04-01), Hagelstein
Bohn; "Possible Population Inversions for VUV and Soft X-Ray Transitions in ydrogen-Like Ions"; Appl. Phys. Lett., vol. 24, No. 1; 1 Jan '74.
Louisell et al; "Analysis of a Soft-X Ray Laser with Charge-Exchange Excitation"; Phys. Rev. A., vol. 11, No. 3, Mar. 1975.
Vekhov et al; "Poss. of Using Metastable Heliumlike Ions in Generation of Ultrasoft X-Ray Stim. Rad."; S. J. Quant Elect., vol. 5, No. 6, 1975.
Reintjes et al; "Extended Plasma Source for Short-Wavelength Amplifiers"; Opt. Lett., vol. 3, No. 2, Aug. '78.
Jr. Leon Scott
McDonnell Thomas E.
The United States of America as represented by the Secretary of
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