High-Intensity and High Energy Laser Interactions with Single Droplets

Abstract

Our research accomplishments have been in five main areas: (1) Third- order sum frequency generation in the volume of the droplet and the role of phase-matching condition with droplet-cavity modes which are standing waves; (2) Retention of acoustic phonons generated by stimulated Brillouin scattering (SBS) and the role of these long-lived acoustic waves and photons in 'seeding' the SBS during the subsequent input-laser pulse; (3) Stimulated low-frequency scattering from anisotropic molecules in droplets and the effect of the low-frequency scattering process in causing the elastic scattering spectrum and the stimulated Raman scattering (SRS) spectrum to be asymmetrically broadened; (4) Resonance Raman enhancement of the SRS gain coefficient with the intent to increase the sensitivity of SRS to minor species in the droplet; and (5) The use of population inverted laser-dye molecules to provide extra gain for SRS from minor species in the droplet.

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Document Details

Document Type
Technical Report
Publication Date
Apr 29, 1994
Accession Number
ADA281415

Entities

People

  • Richard K. Chang

Organizations

  • Yale University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Dye Lasers
  • Elastic Scattering
  • Electro-Optics
  • Frequency Shift
  • Laser Beams
  • Laser Dyes
  • Laser Science
  • Lasers
  • Light (Electromagnetic Radiation)
  • Liquid Dye Lasers
  • Nonlinear Optics
  • Optical Phenomena
  • Optical Properties
  • Optics
  • Scattering
  • Standing Waves
  • Wave Mixing

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Molecular Photonics/Laser Physics
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers