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September 17, 2025Physics of PlasmasOpen Access

Cherenkov-type coherent radiation from laser wakefields driven in nonuniform plasma

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Authors

JHJia HuaLWLinzheng WangYCYanping Chen

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Overview

Numerical simulations reveal Cherenkov-type radiation characteristics in nonuniform plasma, suggesting optimizations for enhanced emission.

Key Points

  • Laser wakefields exhibit a conical radiation pattern produced by superluminal phase velocity.
  • The relationship between radiation intensity and laser focal spot size aligns with theoretical predictions.
  • At moderate intensity, radiation exhibits harmonic spectra reflecting electron plasma frequencies.
  • In highly nonlinear regimes, the radiation spectrum develops a supercontinuum profile extending to higher frequencies.

Cite This Study

Hua et al. (2025) studied this question.

synapsesocial.com/papers/68d4606031b076d99fa602a9https://doi.org/10.1063/5.0291149
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