Picksley, A, Alejo, A, Shalloo, RJ, Arran, C, von Boetticher, A, Corner, L ORCID: 0000-0002-3882-1272, Holloway, JA, Jonnerby, J, Jakobsson, O, Thornton, C et al (show 2 more authors)
(2020)
Meter-scale conditioned hydrodynamic optical-field-ionized plasma channels.
PHYSICAL REVIEW E, 102 (5).
053201-.
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Abstract
We demonstrate through experiments and numerical simulations that low-density, low-loss, meter-scale plasma channels can be generated by employing a conditioning laser pulse to ionize the neutral gas collar surrounding a hydrodynamic optical-field-ionized (HOFI) plasma channel. We use particle-in-cell simulations to show that the leading edge of the conditioning pulse ionizes the neutral gas collar to generate a deep, low-loss plasma channel which guides the bulk of the conditioning pulse itself as well as any subsequently injected pulses. In proof-of-principle experiments, we generate conditioned HOFI (CHOFI) waveguides with axial electron densities of n_{e0}≈1×10^{17}cm^{-3} and a matched spot size of 26μm. The power attenuation length of these CHOFI channels was calculated to be L_{att}=(21±3)m, more than two orders of magnitude longer than achieved by HOFI channels. Hydrodynamic and particle-in-cell simulations demonstrate that meter-scale CHOFI waveguides with attenuation lengths exceeding 1 m could be generated with a total laser pulse energy of only 1.2 J per meter of channel. The properties of CHOFI channels are ideally suited to many applications in high-intensity light-matter interactions, including multi-GeV plasma accelerator stages operating at high pulse repetition rates.
Item Type: | Article |
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Additional Information: | 12 pages, 9 figures |
Uncontrolled Keywords: | physics.acc-ph, physics.acc-ph, physics.plasm-ph |
Depositing User: | Symplectic Admin |
Date Deposited: | 12 Oct 2020 07:54 |
Last Modified: | 18 Jan 2023 23:29 |
DOI: | 10.1103/PhysRevE.102.053201 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3103972 |
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Meter-Scale, Conditioned Hydrodynamic Optical-Field-Ionized Plasma Channels. (deposited 01 Sep 2020 10:49)
- Meter-scale conditioned hydrodynamic optical-field-ionized plasma channels. (deposited 12 Oct 2020 07:54) [Currently Displayed]