Frequency Upshifting of Laser Pulses by Ionization Fronts

Abstract

A novel method for upshifting the frequency of a laser pulse is examined, which utilizes the interaction of the pulse with a co=propagating relativistic ionization front. The induced frequency shift is found to initially scale linearly with the propagation time tau. Asymptotically, the frequency scales as sq. rt. tau. Phase slippage limitations may be overcome by appropriately increasing the plasma density as a function of tau, thus allowing for substantially higher frequency shifts.

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Document Details

Document Type
Technical Report
Publication Date
Mar 14, 1991
Accession Number
ADA234354

Entities

People

  • Eric H. Esarey
  • Glenn R. Joyce
  • Phillip A. Sprangle

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Diffraction
  • Electromagnetic Radiation
  • Electron Beams
  • Electrons
  • Equations
  • Frequency
  • Frequency Shift
  • Group Velocity
  • Ionization
  • Laser Beams
  • Laser Pulses
  • Lasers
  • Military Research
  • Particle Accelerators
  • Phase Velocity
  • Radiation
  • Wave Equations

Fields of Study

  • Engineering
  • Physics

Readers

  • Auditory Neuroscience/Auditory Physiology.
  • Optical Physics and Photonics.
  • Statistical inference.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers