X-ray laser research at the lawrence livermore national laboratory nova laser facility

Dennis L Matthews, M. Rosen, S. Brown, N. Ceglio, D. Eder, A. Hawryluk, C. Keane, R. London, B. Mac Gowan, S. Maxon, D. Nilson, J. Scofield, J. Trebes

Research output: Contribution to journalArticlepeer-review

72 Scopus citations


We describe our optical-laser-pumped x-ray laser program. Our long-term goal is to develop and utilize a fullycoherent, gigowatt-power-level sub-44-Å laser. To this end we have been studying the characteristics of theexploding-foil amplifier coupled with various inversion schemes: Ne-like and Ni-like collisional excitation as wellas H-like three-body recombination. Most of our experimental results to date are for the Ne-like schemes; we haveobserved ˜15 laser transitions in Se, Y, and Mo having wavelengths from 26.3 to 10.6 nm. Output power to at least 1MW has been observed for the Se J = 2 to 1 lines at 20.6 and 20.9 Å along with geometrical divergence patterns forthe beam. We have also observed time-dependent beam refraction from these amplifiers and have been able todemonstrate double-pass amplification by using a multilayer mirror operated at normal incidence. Future plansfor improving beam coherence and producing lasing at wavelengths shorter than 44 Å are discussed.

Original languageEnglish (US)
Pages (from-to)575-587
Number of pages13
JournalJournal of the Optical Society of America B: Optical Physics
Issue number4
StatePublished - 1987
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics


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