Optical probing of relativistic plasma singularities

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 [Pi...

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Published inPhysics of plasmas Vol. 27; no. 5
Main Authors Esirkepov, Timur Zh, Mu, Jie, Gu, Yanjun, Jeong, Tae Moon, Valenta, Petr, Klimo, Ondrej, Koga, James K., Kando, Masaki, Neely, David, Korn, Georg, Bulanov, Sergei V., Pirozhkov, Alexander S.
Format Journal Article
LanguageEnglish
Published 01.05.2020
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Summary: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.
ISSN:1070-664X
1089-7674
DOI:10.1063/5.0004525