Demonstration of a Soft X-Ray Amplifier
D. L. MatthewsLawrence Livermore National Laboratory, University of California, Livermore, California 94550Peter L. HagelsteinLawrence Livermore National Laboratory, University of California, Livermore, California 94550M. D. RosenLawrence Livermore National Laboratory, University of California, Livermore, California 94550M. J. EckartLawrence Livermore National Laboratory, University of California, Livermore, California 94550N. M. CeglioLawrence Livermore National Laboratory, University of California, Livermore, California 94550A. HaziLawrence Livermore National Laboratory, University of California, Livermore, California 94550H. MedeckiLawrence Livermore National Laboratory, University of California, Livermore, California 94550B. J. MacGowanLawrence Livermore National Laboratory, University of California, Livermore, California 94550J. E. TrebesLawrence Livermore National Laboratory, University of California, Livermore, California 94550B. L. WhittenLawrence Livermore National Laboratory, University of California, Livermore, California 94550E. M. CampbellLawrence Livermore National Laboratory, University of California, Livermore, California 94550C. W. HatcherLawrence Livermore National Laboratory, University of California, Livermore, California 94550A. M. HawrylukLawrence Livermore National Laboratory, University of California, Livermore, California 94550R. L. KauffmanLawrence Livermore National Laboratory, University of California, Livermore, California 94550Lyn D. PleasanceLawrence Livermore National Laboratory, University of California, Livermore, California 94550G.D. RambachLawrence Livermore National Laboratory, University of California, Livermore, California 94550J. H. ScofieldLawrence Livermore National Laboratory, University of California, Livermore, California 94550G. StoneLawrence Livermore National Laboratory, University of California, Livermore, California 94550T. A. WeaverLawrence Livermore National Laboratory, University of California, Livermore, California 94550
1985en
ABI
Аннотация
We report observations of amplified spontaneous emission at soft x-ray wavelengths. An optical laser ionized thin foils of selenium to produce a population inversion of the $2{p}^{5}3p$ and $2{p}^{5}3s$ levels of the neonlike ion. Using three time-resolved, spectroscopic measurements we demonstrated gain-length products up to 6.5 and gain coefficients of 5.5\ifmmode\pm\else\textpm\fi{}1.0 ${\mathrm{cm}}^{\ensuremath{-}1}$ for the $J=2 \mathrm{to} 1$ lines at 206.3 and 209.6 \AA{}. We also observed considerable amplification for the same transitions in yttrium at 155.0 and 157.1 \AA{}.
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