Cryogenically formed discharge waveguide

0551967 - FZÚ 2022 RIV US eng J - Journal Article
Swanson, K.K. - Gonsalves, A.J. - Mao, H. S. - Sipla, T. - Bulanov, S.S. - Bobrova, N. A. - Sasorov, Pavel - Korn, Georg - Benedetti, C. - Pieronek, C.V. - Schroeder, C.B. - Geddes, C.G.R. - Esarey, E. - Leemans, W.P.
Cryogenically formed discharge waveguide.
PHYSICAL REVIEW ACCELERATORS AND BEAMS. Roč. 24, č. 9 (2021), č. článku 091301. ISSN 2469-9888. E-ISSN 2469-9888
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
Research Infrastructure: ELI Beamlines III - 90141
Institutional support: RVO:68378271
Keywords : laser wakefield acceleration * capillary discharge plasma * laser pulse guiding
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 1.879, year: 2021
Method of publishing: Open access

We describe the development and operation of a regenerative, cryogenically-formed discharge waveguide formed by freezing nitrous oxide gas onto the inner wall of a sapphire capillary. We demonstrate a technique for varying the channel diameter in situ and present guiding of low-power laser pulses through 6-cm long waveguides with channel diameters of 0.7, 0.8, and 1 mm. Measurements and simulations of the output laser fluence showed that the matched spot size could be adjusted with the thickness of the solid nitrous oxide layer.
Permanent Link: http://hdl.handle.net/11104/0327163