VUV and soft X-ray emission from pre-plasmas irradiated with picosecond and femtosecond pulses

A. Murphy, J. S. Hirsch, D. Kilbane, E. T. Kennedy, M. A. Khater, J. P. Mosnier, A. Neogi, G. O'Sullivan, C. L.S. Lewis, S. Topping, R. Clarke, E. Divall, P. Foster, C. Hooker, A. Langley, D. Neely, P. Dunne, J. T. Costello

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

We report here some observations and preliminary findings from a study focussed on the vacuum-UV (λ, 40 - 60 nm) radiation emitted during the interaction of 150 ps laser pulses (100 - 400 mJ) with copper pre-plasmas formed by an electro-optically synchronised (0.1 - 0.8 J, 8 ns) long pulse laser. We have observed significant gains in VUV flux that scale with inter-laser delay. We also report preliminary observations on total X-ray emission from the interaction of a superintense 80 fs, 200 mJ laser pulse at the UK ASTRA laser facility with a similar pre-plasma at irradiances approaching 1019 W/cm2.

Original languageEnglish
Pages (from-to)1196-1203
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4876
Issue number2
DOIs
Publication statusPublished - 2002
Externally publishedYes
EventOpto-Ireland 2002: Optics and Photonics Technologies and Applications - Galway, Ireland
Duration: 05 Sep 200206 Sep 2002

Keywords

  • Copper
  • Femtosecond
  • Laser
  • Picosecond
  • Plasma
  • Spectra
  • Vacuum-UV
  • X-ray

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