Prepulse dependence of X-ray emission from plasmas created by IR femtosecond laser pulses on solids

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

We report a strong prepulse dependence of the emission of X-rays from plasmas created by 150 fs Ti:sapphire laser pulses on solids. The laser pulses were focused onto plane samples of aluminium and vanadium with a main pulse power density of about 2.5 x 10(16) W cm(-2). By splitting off a portion of the main pulse we were able to generate a prepulse whose delay and intensity were variable relative to the main pulse. With no prepulse, very weak X-ray radiation from Al9+ and Al10+ was observed, whereas a prepulse to main pulse ratio of more than 0.1% and the prepulse preceding the main pulse by more than 2 ns produced up to 50 times stronger X-ray output.

Detaljer

Författare
  • J Steingruber
  • S Borgstrom
  • T Starczewski
  • Ulf Litzén
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Atom- och molekylfysik och optik
Originalspråkengelska
TidskriftJournal of Physics B: Atomic, Molecular and Optical Physics
Volym29
Utgåva nummer2
StatusPublished - 1996
PublikationskategoriForskning
Peer review utfördJa

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