Mondal, Angana, Sabui, Ratul, Tata, Sheroy et al. (13 more authors) (2024) Shaped liquid drops generate MeV temperature electron beams with millijoule class laser. Communications Physics. 85. ISSN 2399-3650
Abstract
MeV temperature electrons are typically generated at laser intensities of 1018 W cm−2. Their generation at non-relativistic intensities (~1016 W cm−2) with high repetition rate lasers is cardinal for the realization of compact, ultra-fast electron sources. Here we report a technique of dynamic target structuring of micro-droplets using a 1 kHz, 25 fs, millijoule class laser, that uses two collinear laser pulses; the first to create a concave surface in the liquid drop and the second, to dynamically-drive electrostatic plasma waves that accelerate electrons to MeV energies. The acceleration mechanism, identified as two plasmon decay instability, is shown to generate two beams of electrons with hot electron temperature components of 200 keV and 1 MeV, respectively, at an intensity of 4 × 1016 Wcm−2, only. The electron beams are demonstrated to be ideal for single shot high resolution (tens of μm) electron radiography.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Funding Information: The PIC simulations were partly supported by the supercomputer center ARCHER via the Plasma HEC Consortium under E PSRC (no. EP/L000237/1). MK thanks DAE-SRC-OI award for supporting this work. MK thanks professor Robert Bingham for suggestions and motivating discussions. Publisher Copyright: © The Author(s) 2024. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 22 Mar 2024 16:10 |
Last Modified: | 03 Dec 2024 01:17 |
Published Version: | https://doi.org/10.1038/s42005-024-01550-8 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1038/s42005-024-01550-8 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:210796 |
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Description: Shaped liquid drops generate MeV temperature electron beams with millijoule class laser
Licence: CC-BY 2.5