Coherence brightening and laser lethargy in X-ray laser amplifiers

F. A. Hopf, P. Meystre, M. O. Scully, John F. Seely

Research output: Contribution to journalArticle

46 Scopus citations


The lethargic response of the lasing medium produced by the combined effects of finite bandwidth and rapid decay of the population inversion leads to a reduction of the linear gain expected in certain x-ray laser amplifiers. However, the effects of coherence brightening are also important, and in the superradiant regime, the laser output approaches that predicted by the usual calculation.

Original languageEnglish (US)
Pages (from-to)511-513
Number of pages3
JournalPhysical review letters
Issue number8
StatePublished - Jan 1 1975


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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