Tapered capillaries applied in laser wakefield acceleration

S. Mark Wiggins, Salima Abuazoum, Gregory Vieux, Gregor H. Welsh, Riju C. Issac, M. Ranaul Islam, Bernhard Ersfeld, Enrico Brunetti, Silvia Cipiccia, David W. Grant, Dino A. Jaroszynski

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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Abstract

This paper presents realisation of linearly tapered capillary discharge waveguides (CDWs), manufactured using a femtosecond laser micromachining technique. Waveguiding of a low power, 50 fs duration laser pulse is demonstrated and, despite a slight mismatch of the laser focal spot size with respect to the capillary entrance size, efficient guiding of the Gaussian-shaped laser pulse is obtained. Energy transmission of 80% is obtained for optimal delay of the laser pulse arrival time with respect to the discharge current pulse.
Original languageEnglish
Title of host publication2012 Abstracts IEEE International Conference on Plasma Science (ICOPS)
PublisherIEEE
Number of pages1
ISBN (Print)978-1-4577-2127-4
DOIs
Publication statusPublished - 2012
EventIEEE International Conference on Plasma Science ICOPS12 - Edinburgh
Duration: 9 Jul 201212 Jul 2012

Conference

ConferenceIEEE International Conference on Plasma Science ICOPS12
CityEdinburgh
Period9/07/1212/07/12

Keywords

  • gaussian distribution
  • capillarity
  • electric discharges
  • optical fabrication
  • optical pulse generation
  • wakefield accelerator

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