Scale-length optimising of short pulse Cu K-alpha laser plasma sources

Fida Khattak, E. Garcia Saiz, T. Dzelzainis, David Riley, Z. Zhai

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

The authors present experimental results showing how the use of a high contrast femtosecond laser system allows better optimization of K emission from a Cu target. The shorter scale-length preformed plasma is better optimized for resonance absorption of the laser light when the laser is moved away from best focus. The experimental data show a central peak of K emission at tight focus with strong secondary peaks at large offset. The use of these secondary peaks results in a much reduced hard x-ray background and should lead to shorter K pulses than at tight focus.
Original languageEnglish
Article number081502
Pages (from-to)081502-1-081502-3
Number of pages3
JournalApplied Physics Letters
Volume90
Issue number8
DOIs
Publication statusPublished - Feb 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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