Optical probing of relativistic plasma singularities

@article{Esirkepov2019OpticalPO,
  title={Optical probing of relativistic plasma singularities},
  author={Timur Zh. Esirkepov and Jie Mu and Yanjun Gu and T M Jeong and Petr Valenta and Ondřej Klimo and James K. Koga and Masaki Kando and David Neely and G Korn and S. V. Bulanov and Alexander S. Pirozhkov},
  journal={Physics of Plasmas},
  year={2019},
  volume={27},
  pages={052103}
}
Singularities in multi-stream flows of relativistic plasmas can efficiently produce coherent high-frequency radiation, as exemplified in the concepts of the Relativistic Flying Mirror [Bulanov et al., Phys. Rev. Lett. 91, 085001 (2003)] and Burst Intensification by Singularity Emitting Radiation [Pirozhkov et al., Sci. Rep. 7, 17968 (2017)]. Direct observation of these singularities is challenging due to their extreme sharpness (tens of nanometers), relativistic velocity, and transient non… 
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