High-Order Harmonics from Laser Irradiated Electron Density Singularity Formed at the Bow Wave in the Laser Plasma


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Abstract

The electron density singularity formed at the joining area of relativistic wake wave and bow waves has been proposed as a novel relativistic electron mirror regime to reflect the counter-propagating electromagnetic pulse [1]. Coherent hard electromagnetic radiation is generated by the reflection, compression and frequency upshift from the electron density singularity. In this paper, detailed description of this regime is provided, and new features are shown. The electromagnetic fields reflected by the electron density singularity are investigated via multi-dimensional particle-in-cell simulations.

About the authors

J. Mu

Institute of Physics of the ASCR, ELI Beamlines Project

Author for correspondence.
Email: Jie.Mu@eli-beams.eu
Czech Republic, Na Slovance 2, Prague, 18221

T. Zh. Esirkepov

Kansai Photon Science Institute

Author for correspondence.
Email: timur.esirkepov@qst.go.jp
Japan, 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215

P. Valenta

Institute of Physics of the ASCR, ELI Beamlines Project; Faculty of Nuclear Sciences and Physical Engineering

Author for correspondence.
Email: Petr.Valenta@eli-beams.eu
Czech Republic, Na Slovance 2, Prague, 18221; Brehova 7, Prague, 11519

T. M. Jeong

Institute of Physics of the ASCR, ELI Beamlines Project

Author for correspondence.
Email: TaeMoon.Jeong@eli-beams.eu
Czech Republic, Na Slovance 2, Prague, 18221

Ya. Gu

Institute of Physics of the ASCR, ELI Beamlines Project

Author for correspondence.
Email: Yanjun.Gu@eli-beams.eu
Czech Republic, Na Slovance 2, Prague, 18221

J. K. Koga

Kansai Photon Science Institute

Author for correspondence.
Email: koga.james@qst.go.jp
Japan, 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215

A. S. Pirozhkov

Kansai Photon Science Institute

Author for correspondence.
Email: pirozhkov.alexander@qst.go.jp
Japan, 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215

M. Kando

Kansai Photon Science Institute

Author for correspondence.
Email: kando.masaki@qst.go.jp
Japan, 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215

G. Korn

Institute of Physics of the ASCR, ELI Beamlines Project

Author for correspondence.
Email: Georg.Korn@eli-beams.eu
Czech Republic, Na Slovance 2, Prague, 18221

S. V. Bulanov

Institute of Physics of the ASCR, ELI Beamlines Project; Kansai Photon Science Institute; Prokhorov General Physics Institute of the Russian Academy of Sciences

Author for correspondence.
Email: Sergei.Bulanov@eli-beams.eu
Czech Republic, Na Slovance 2, Prague, 18221; 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215; ul. Vavilova 38, Moscow, 119991

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