Radial density profile and stability of capillary discharge plasma waveguides of lengths up to 40 cm

0561699 - FZÚ 2023 RIV GB eng J - Journal Article
Turner, M. - Gonsalves, A.J. - Bulanov, S.S. - Benedetti, C. - Bobrova, N. A. - Gasilov, V.A. - Sasorov, Pavel - Korn, Georg - Nakamura, K. - van Tilborg, J. - Geddes, C.G.R. - Schroeder, C.B. - Esarey, E.
Radial density profile and stability of capillary discharge plasma waveguides of lengths up to 40 cm.
High Power Laser Science and Engineering. Roč. 9, APR (2021), č. článku e17. ISSN 2095-4719. E-ISSN 2052-3289
R&D Projects: GA MŠMT EF15_003/0000449
Grant - others:OP VVV - HiFi(XE) CZ.02.1.01/0.0/0.0/15_003/0000449
Institutional support: RVO:68378271
Keywords : capillary plasma waveguide * laser - driven plasma wakefield acceleration * plasma telescope * matched laser guiding
OECD category: Particles and field physics
Impact factor: 5.943, year: 2021
Method of publishing: Open access

We measured the parameter reproducibility and radial electron density profile of capillary discharge waveguides with diameters of 650 μm to 2 mm and lengths of 9 to 40 cm. To the best of the authors’ knowledge, 40 cm is the longest discharge capillary plasma waveguide to date. This length is important for ≥ 10 GeV electron energy gain in a single laser-driven plasma wakefield acceleration stage. We show that the effects of non-parabolic contributions on Gaussian pulse propagation were negligible when the pulse was approximately matched to the channel. However, they affected pulse propagation for a non-matched configuration in which the waveguide was used as a plasma telescope to change the focused laser pulse spot size.
Permanent Link: https://hdl.handle.net/11104/0334218