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Laser Gate: multi-MeV electron acceleration and zeptosecond e-bunching.

A E Kaplan1, A L Pokrovsky

  • 1Electronic and Computer Engineering Department, The Johns Hopkins University, Baltimore, MD 21218, USA.

Optics Express
|April 15, 2009
PubMed
Summary

Intense laser fields can accelerate electrons to multi-MeV energies per pass. This laser-driven process also enables ultra-fast electron bunch formation, reaching the zeptosecond timescale.

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Area of Science:

  • High-intensity laser-matter interactions
  • Particle acceleration physics
  • Quantum electron dynamics

Background:

  • Electron acceleration using lasers is crucial for advanced applications.
  • Achieving significant energy gains and precise temporal control of electrons is a key challenge.

Purpose of the Study:

  • To investigate electron acceleration and temporal focusing via inelastic scattering in intense laser fields.
  • To explore the potential for multi-MeV net acceleration per pass.
  • To examine the possibility of zeptosecond electron bunch formation.

Main Methods:

  • Theoretical analysis of electron dynamics in relativistically-intense laser fields.
  • Modeling inelastic scattering processes within a "laser gate".
  • Investigating electron behavior in both high and low laser field gradients.

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Last Updated: Jun 24, 2026

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09:49

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Published on: October 23, 2018

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

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Main Results:

  • Relativistically-intense laser fields with large gradients enable strong inelastic scattering, leading to multi-MeV electron acceleration per pass.
  • Even low-gradient laser fields can induce extremely tight temporal focusing.
  • Electron bunch formation down to the quantum, zeptosecond limit is achievable.

Conclusions:

  • Laser-driven inelastic scattering offers a novel pathway for significant electron energy gain.
  • This process provides unprecedented control over electron bunch formation, enabling attosecond-scale temporal resolution.