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Relativistic longitudinal self-compression of ultrashort time-domain hollow Gaussian pulses in plasma

  • Xiaochao Cao
  • Feiyun Fang
  • Zhaoying WangEmail author
  • Qiang Lin
Regular Article
  • 51 Downloads

Abstract

We report a study on dynamical evolution of the ultrashort time-domain dark hollow Gaussian (TDHG) pulses beyond the slowly varying envelope approximation in homogenous plasma. Using the complex-source-point model, an analytical formula is proposed for describing TDHG pulses based on the oscillating electric dipoles, which is the exact solution of the Maxwell’s equations. The numerical simulations show the relativistic longitudinal self-compression (RSC) due to the relativistic mass variation of moving electrons. The influences of plasma oscillation frequency and collision effect on dynamics of the TDHG pulses in plasma have been considered. Furthermore, we analyze the evolution of instantaneous energy density of the TDHG pulses on axis as well as the off axis condition.

Graphical abstract

Keywords

Nonlinear Dynamics 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Xiaochao Cao
    • 1
  • Feiyun Fang
    • 1
  • Zhaoying Wang
    • 1
    Email author
  • Qiang Lin
    • 2
  1. 1.Institute of Optics, Department of Physics, Zhejiang UniversityHangzhouP.R. China
  2. 2.Center for Optics and Optoelectronics Research, College of Science, Zhejiang University of TechnologyHangzhouP.R. China

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