Abstract
Gain on 0-1 transitions has now been demonstrated in Ni-like Eu1,2 and Yb3 using targets between 60 and 100 μg/cm2. The intensities of the input laser were 7×1013 W/cm2 (Eu) and 1.4×1014 W/cm2 (Yb). The measured gain coefficient on the 71Å (Eu) and the 50.3Å line (Yb) was 1 cm−1. Using a modified version of the Lagrangian hydrodynamics code LASNEX together with the kinetics code XRASER, the calculated gains are in reasonable agreement with experiment.2
© 1988 Optical Society of America
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