Third harmonic order imaging as a focal spot diagnostic for high intensity laser-solid interactions

Brendan Dromey, C. Bellei, D.C. Carroll, Rosemary Clarke, J.S. Green, Satyabrata Kar, S. Kneip, K. Markey, S.R. Nagel, L. Willingale, P. McKenna, D. Neely, Z. Najmudin, K. Krushelnick, P.A. Norreys, Matthew Zepf

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

As the state of the art for high power laser systems increases from terawatt to petawatt level and beyond, a crucial parameter for routinely monitoring high intensity performance is laser spot size on a solid target during an intense interaction in the tight focus regime ( 10(19) Wcm(-2) is demonstrated experimentally and shown to provide the basis for an effective focus diagnostic. Importantly, this technique is also shown to allow in-situ diagnosis of focal spot quality achieved after reflection from a double plasma mirror setup for very intense high contrast interactions (> 10(20) Wcm(-2)) an important application for the field of high laser contrast interaction science.
Original languageEnglish
Pages (from-to)243-248
Number of pages6
JournalLaser And Particle Beams
Volume27
Issue number2
DOIs
Publication statusPublished - Jun 2009

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

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