Abstract We report on recent progress achieved in x-ray laser research at the Institute of Applied Physics of the University of Bern. Using the existing Nd:glass CPA (chirped-pulse amplification) laser system and the grazing-incidence pumping (GRIP) scheme, saturated x-ray lasing has been obtained on the 4d → 4p, J = 0-1 lines of Sn and Sb at wavelengths of 11.9 and 11.4 nm, respectively, using pumping energies of only 2 J (Sn) and 2.5 J (Sb). The experiments on Sn were done with 2-ps duration pump pulses, while for the Sb experiments the pulse duration was 7 ps. In both cases, multi-microjoule output was measured for a grazing angle of 45° using a grazing-incidence prepulse of the same duration as the main pulse, having 2.8% of its energy, and preceding it by 4.4 ns.
Recent Progress in Grazing-Incidence-Pumped X-Ray Lasers at Uni-BE
2009-01-01
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Recent Progress in Grazing-Incidence-Pumped X-Ray Lasers at Uni-BE
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