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Demonstration of large amplification in multipulse-pumped lithiumlike aluminum soft-x-ray lasers

Physical Review A - Atomic, Molecular, and Optical Physics, ISSN: 1094-1622, Vol: 58, Issue: 2, Page: 1605-1608
1998
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We report on a demonstration of a gain-length product greater than five for recombination-pumped Li-like soft-x-ray lasers, using a long plasma length of 3.3 cm. Slab aluminum targets are irradiated by a multipulse Nd:glass laser pump at an intensity of 1 [Formula Presented] A time-integrated small-signal gain coefficient of 1.7 [Formula Presented] and a gain-length product of 5.6 are observed for the 154.7 Å Li-like Al laser. Space-resolved observations reveal a gain region width of 200 [Formula Presented]m full width at half maximum, which is found to be wide enough for saturated amplification experiments. © 1998 The American Physical Society.

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