Backward Raman Amplification in the Long-wavelength Infrared

Abstract

The wealth of work in backward Raman amplification in plasma has focused on the extreme intensity limit, but backward Raman amplification may also provide an effective and practical mechanism for generating intense, broad bandwidth, long-wavelength infrared radiation. An electromagnetic finite-difference time-domain simulation coupled with a relativistic cold fluid plasma model is used to demonstrate the generation of picosecond pulses at 10 um with terawatt powers through backward Raman amplification. The effects of collisional and Landau damping, pump depletion, and wave breaking are examined.

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Document Details

Document Type
Technical Report
Publication Date
Dec 29, 2016
Accession Number
AD1028628

Entities

People

  • Bahman Hafizi
  • D. Gordon
  • John Palastro
  • Luke A. Johnson

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Amplifiers
  • Backscattering
  • Electromagnetic Scattering
  • Electrons
  • Frequency
  • Frequency Shift
  • Infrared Radiation
  • Lasers
  • Long Wavelengths
  • Long-Wavelength Infrared Radiation
  • Military Research
  • Nonlinear Optics
  • Optics
  • Plasma Waves
  • Repetition Rate
  • Simulations
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Plasma Physics / Magnetohydrodynamics
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