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Dependence on Laser Pulse Duration of the Maximum Energy of Protons Accelerated by Intense “Slow Light”

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Abstract

Three-dimensional numerical simulations were used to study the dependence of maximum energy of ions (protons) accelerated from low-density targets on the duration of the accelerating femtosecond laser pulse at its given total energy which, in particular, is important due to the latest achievements in the so-called postcompression of laser pulses to very short durations. It was shown that an optimum pulse length exists, which leads to maximum proton energy acquired in the regime of their maximum efficient synchronized acceleration by the “slow light” (A. V. Brantov et al., Phys. Rev. Lett. 116, 085004 (2016) [1]) and that the ultra shortening of the laser pulse does not lead to the increase in the maximum ion energy despite the increased intensity of laser light.

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Funding

This work was supported by the Russian Foundation for Basic Research under the RFBR–ROSATOM grant no. 20-21-00023.

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Authors and Affiliations

  1. Lebedev Physical Institute, Russian Academy of Sciences, 119991, Moscow, Russia

    A. V. Brantov & V. Yu. Bychenkov

  2. Dukhov Automatics Research Institute, 127055, Moscow, Russia

    V. Yu. Bychenkov

Authors
  1. A. V. Brantov
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  2. V. Yu. Bychenkov
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Correspondence to A. V. Brantov.

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The authors declare no conflict of interest.

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Translated by E. Voronova

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Brantov, A.V., Bychenkov, V.Y. Dependence on Laser Pulse Duration of the Maximum Energy of Protons Accelerated by Intense “Slow Light”. Plasma Phys. Rep. 48, 585–590 (2022). https://doi.org/10.1134/S1063780X22700192

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  • DOI: https://doi.org/10.1134/S1063780X22700192

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