Optical probing of relativistic plasma singularities

Timur Zh Esirkepov, Jie Mu, Yanjun Gu, Tae Moon Jeong, Petr Valenta, Ondrej Klimo, James K. Koga, Masaki Kando, David Neely, Georg Korn, Sergei V. Bulanov, Alexander S. Pirozhkov

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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-local nature. We propose to use an ultrafast (a few light cycles) optical probe for identifying relativistic plasma singularities. Our estimations and Particle-in-Cell simulations show that this diagnostic is feasible.

Original languageEnglish
Article number052103
Number of pages9
JournalPhysics of Plasmas
Volume27
Issue number5
DOIs
Publication statusPublished - 1 May 2020

Keywords

  • relativistic plasmas
  • multi-stream flows
  • laser–matter interactions

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