Recent developments in X-ray laser research at LLE

T. Boehly, B. Yaakobi, R. S. Craxton, R. Epstein, M. C. Richardson, M. Russotto, D. Shvarts, J. M. Soures, J. Wang

Research output: Contribution to conferencePaperpeer-review

Abstract

Recent experiments using multiple-foil target designs for a collisional-excitation X-ray laser in Ne-like nickel and germanium are reported. These targets, which are designed to yield higher gains than single-exploding-foil targets, are irradiated by 600-ps pulses of 351-nm light in a single 18-mm line. The lasing lines at approximately 230 angstrom are observed with a 1-m grazing incidence grating spectrometer. The relative merits of different pump-laser wavelengths have been studied, and experimental results have been obtained for three wavelengths: 1.06 μm, 527 nm, and 351 nm. For recombination X-ray laser studies, 1000-2000-angstrom foils have been irradiated with 100-ps pulses of 351-nm light. The spatially resolved X-ray spectra show the extent to which the hydrogenic and heliumlike species expand and recombine. Plans have been developed for the conversion of the laser to a approximately 100-J-10-ps laser (10 TW), which will be used for producing a recombinationally pumped laser in Al that is predicted to emit at 39 angstrom.

Original languageEnglish
Pages135
Number of pages1
StatePublished - 1 Dec 1989
Externally publishedYes
EventIEEE International Conference on Plasma Science 1989 - Buffalo, NY, USA
Duration: 22 May 198924 May 1989

Conference

ConferenceIEEE International Conference on Plasma Science 1989
CityBuffalo, NY, USA
Period22/05/8924/05/89

ASJC Scopus subject areas

  • Engineering (all)

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