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    Data associated with the manuscript titled “Towards terawatt-scale spectrally-tunable terahertz pulses via relativistic laser-foil interactions”

    1. Liao, Guoqian ORCID
    2. Liu, Hao
    3. Scott, Graeme ORCID
    4. Zhang, Yihang
    5. Zhu, Bao-Jun
    6. Zhang, Zhe
    7. Li, Yutong
    8. Armstrong, C. D. ORCID
    9. Zemaityte, Egle
    10. Bradford, Philip ORCID
    11. Rusby, Dean
    12. Neely, David
    13. Huggard, Peter
    14. McKenna, Paul ORCID
    15. Brenner, Ceri ORCID
    16. Woolsey, Nigel ORCID
    17. Wang, Wei-Min ORCID
    18. Sheng, Zheng-Ming ORCID
    19. Zhang, Jie
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    Data description and method (21.71Kb)
    Data used in Figures of article (5.396Mb)
    Dataset thumbnail-Calculated THz spectra versus electron bunch duration (191.5Kb)
    Meta data for repository (113.6Kb)
    Zip file with data and description of data (2.921Mb)
    Date
    2020-07
    Metadata
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    Abstract
    This dataset includes experimental and numerical data from the manuscript 'Towards terawatt-scale spectrally-tunable terahertz pulses via relativistic laser-foil interactions'. The experimental data are obtained in the experiment titled “Intense terahertz radiation from picosecond laser-produced plasmas” (Application No.: 16110035, PI: David Neely), performed at Vulcan TAW. In this experiment, we demonstrate efficient production of terawatt (TW)-level THz pulses from high-intensity picosecond laser-foil interactions, and find the THz spectrum can be manipulated effectively by tuning the laser pulse duration or target size. A general analytical framework for THz generation is developed involving both the high-current electron emission and a time-varying electron sheath at the target rear, and the spectral tunability is found to stem from the change of the dominant THz generation mechanism. The THz radiation is applied to quantitatively diagnose the electron emission and the transient sheath, in good agreements with experimental measurements. Please see the file named “Data description” in the root directory of the attached zip file for a detailed description of the data contained therein. The data acquisition and analysis methods can also be found in the manuscript.
    URI
    http://purl.org/net/edata/handle/edata/766
    http://dx.doi.org/10.5286/edata/741
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    Funders
    National Nature Science Foundation of China
    Science Challenge Project
    Strategic Priority Research Program of CAS
    National Key Research and Development Program of China
    Newton UK grant
    Engineering and Physical Sciences Research Council
    License
    Creative Commons Attribution 4.0 International

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