Gas-filled capillary discharge waveguides

D. J. Spence*, A. Butler, S. M. Hooker

*Corresponding author for this work

Research output: Contribution to journalArticle

48 Citations (Scopus)


We describe in detail the operation of the gas-filled capillary discharge waveguide for high-intensity laser pulses and discuss measurements and magnetohydrodynamic simulations that show that the plasma channel produced is parabolic and essentially fully ionized. We present the results of experiments in which laser pulses with a peak input intensity of 1.2 × 1017 W cm-2 were guided through hydrogen-filled capillary discharges with lengths of 30 and 50 mm. The pulse energy coupling and transmission losses were determined to be <4% and (7 ± 1) m-1, respectively. We discuss the application of waveguides of this type to driving short-wavelength lasers and laser wakefield accelerators.

Original languageEnglish
Pages (from-to)138-151
Number of pages14
JournalJournal of the Optical Society of America B: Optical Physics
Issue number1
Publication statusPublished - 2003
Externally publishedYes

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