Abstract
The interaction between a laser pulse with a peak power of 15 PW and a solid film target in the reflection and transmission regimes has been numerically studied. Frequency–angular radiation spectra in the THz range have been obtained and the parameters of accelerated electrons have been determined for these cases. The dimensionless strength of the THz field amounts to several units of a0, which may allow one to achieve relativistic intensities in the THz range after focusing.
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ACKNOWLEDGMENTS
We are grateful to I. Tsygvintsev and F. Korneev for calculations of the hydrodynamic expansion of targets.
This study was performed on the equipment of the Faculty of Physics of the Moscow State University subsidized by the Ministry of Science and Higher Education of the Russian Federation within the National Project “Science and Universities” (agreement on grant no. 15-pr/34 on December 29, 2021).
Funding
D. A. Gorlova acknowledges the scholarship support of the Theoretical Physics and Mathematics Advancement Foundation “BASIS.” This study was supported by the Russian Science Foundation in the part concerning the simulation of electron acceleration, grant no. 21-79-10207.
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Translated by A. Sin’kov
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Gorlova, D.A., Tsymbalov, I.N., Ivanov, K.A. et al. Generation of THz Radiation with Extreme Parameters Using a Multipetawatt Laser Beam. Bull. Lebedev Phys. Inst. 50 (Suppl 7), S829–S836 (2023). https://doi.org/10.3103/S1068335623190065
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DOI: https://doi.org/10.3103/S1068335623190065