Sedov, M. V., Faenov, A. Ya, Andreev, A. A. et al. (16 more authors) (2019) Features of the generation of fast particles from microstructured targets irradiated by high intensity, picosecond laser pulses. Laser and Particle Beams. ISSN 0263-0346
Abstract
The use of targets with surface structures for laser-driven particle acceleration has potential to significantly boost the particle and radiation energies because of enhanced laser absorption. We investigate, via experiment and particle-in-cell simulations, the impact of micron-scale surface-structured targets on the spectrum of electrons and protons accelerated by a picosecond laser pulse at relativistic intensity. Our results show that, compared with flat-surfaced targets, structures on this scale give rise to a significant enhancement in particle and radiation emission over a wide range of laser-target interaction parameters. This is due to the longer plasma scale length when using micro-structures on the target front surface. We do not observe an increase in the proton cutoff energy with our microstructured targets, and this is due to the large volume of the relief.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Cambridge University Press 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
Keywords: | Laser-plasma interaction,plasma line emission,structured target |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) The University of York > York Institute for Materials Research |
Funding Information: | Funder Grant number EPSRC EP/L000644/1 THE ROYAL SOCIETY IES 2012 RFBR |
Depositing User: | Pure (York) |
Date Deposited: | 14 May 2019 16:00 |
Last Modified: | 17 Dec 2024 00:13 |
Published Version: | https://doi.org/10.1017/S0263034619000351 |
Status: | Published online |
Refereed: | Yes |
Identification Number: | 10.1017/S0263034619000351 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:146096 |