Abstract

The transient-excitation pumping scheme, in which a picosecond duration pulse rapidly heats the plasma preformed by a low-intensity nanosecond pulse, was used to pump the Ne-like germanium, J=01 transition at 19.6 nm. A small-signal gain coefficient of 30 cm-1 was measured for targets ⩽5 mm long.

© 1998 Optical Society of America

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