Oks, E., Dalimier, E., Faenov, A. Ya . et al. (18 more authors) (2017) In-depth study of intra-Stark spectroscopy in the x-ray range in relativistic laser-plasma interactions. Journal of Physics B: Atomic, Molecular and Optical Physics. 245006. ISSN 1361-6455
Abstract
Intra-Stark spectroscopy (ISS) is the spectroscopy within the quasistatic Stark profile of a spectral line. The present paper advances the ISS-based study of the relativistic laser-plasma interaction from our previous paper (Oks et al 2017 Opt. Express 25 1958). By improving the experimental conditions and the diagnostics, it provides an in-depth spectroscopic study of the simultaneous production of the Langmuir waves and of the ion acoustic turbulence at the surface of the relativistic critical density. It demonstrates a reliable reproducibility of the Langmuir-wave-induced dips at the same locations in the experimental profiles of Si XIV Ly-beta line, as well as of the deduced parameters (fields) of the Langmuir waves and ion acoustic turbulence in several individual 1 ps laser pulses and of the peak irradiances of 1-3 ×1020 W cm-2. Besides, this study employs for the first time the most rigorous condition of the dynamic resonance, on which the ISS phenomenon is based, compared to all previous studies in all kinds of plasmas in a wide range of electron densities. It shows how different interplays between the Langmuir wave field and the field of the ion acoustic turbulence lead to distinct spectral line profiles, including the disappearance of the Langmuir-wave-induced dips.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 IOP Publishing Ltd. 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: | intra-Stark spectroscopy,parametric decay instability,relativistic laser-plasma interaction,x-ray spectral line Profiles |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York The University of York > Faculty of Sciences (York) > Physics (York) |
Funding Information: | Funder Grant number EPSRC EP/L000644/1 THE ROYAL SOCIETY IES 2012 RFBR |
Depositing User: | Pure (York) |
Date Deposited: | 03 Jan 2018 10:40 |
Last Modified: | 17 Dec 2024 00:09 |
Published Version: | https://doi.org/10.1088/1361-6455/aa93c7 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1088/1361-6455/aa93c7 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:125754 |
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