A review of X-ray laser development at Rutherford Appleton Laboratory

G.J. Tallents, Y. Abou-Ali, M. Edwards, R. King, G.J. Pert, S.J. Pestehe, F. Strati, Ciaran Lewis, Caroline Keenan, S. Topping, A. Klisnick, O. Guilbaud, D. Ros, R. Clarke, M. Notley, D. Neely

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Recent experiments undertaken at the Rutherford Appleton Laboratory to produce X-ray lasing over the 5-30 nm wavelength range are reviewed. The efficiency of lasing is optimized when the main pumping pulse interacts with a preformed plasma. Experiments using double 75-ps pulses and picosecond pulses superimposed on 300-ps background pulses are described. The use of travelling wave pumping with the approximately picosecond pulse experiments is necessary as the gain duration becomes comparable to the time for the X-ray laser pulse to propagate along the target length. Results from a model taking account of laser saturation and deviations from the speed of light c of the travelling wave and X-ray laser group velocity are presented. We show that X-ray laser pulses as short as 2-3 ps can be produced with optical pumping pulses of approximate to1-ps.
Original languageEnglish
Pages (from-to)201-209
Number of pages9
JournalLaser And Particle Beams
Volume20
Issue number2
DOIs
Publication statusPublished - 2002

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Surfaces and Interfaces

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