STIMULATED SCATTERING IN LIQUIDS AND GASES.

Abstract

A series of six papers on stimulated scattering is presented. A summary of the work on stimulated Rayleigh scattering in liquids is included. Polarization conditions are discussed and orientational relaxation times are determined. The existence of stimulated thermal Rayleigh scattering in gases and liquids has been observed. The threshold, critical absorption coefficient needed to suppress the stimulated Brillouin scattering, and the predicted anti-Stokes shift have been observed. The density dependence of the threshold has been investigated for CH4 and CO2. The time for thermalization of excited molecules when reduced to one atmosphere has been determined to be on the order of 0.1 microseconds. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 28, 1969
Accession Number
AD0684880

Entities

People

  • Chang-Woo Cho
  • D. H. Rank
  • D. R. Dietz
  • N. D. Foltz
  • T. A. Wiggins

Organizations

  • Pennsylvania State University

Tags

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Atmospheres
  • Brillouin Scattering
  • Coefficients
  • Electromagnetic Radiation
  • Electromagnetic Scattering
  • Microsecond Time
  • Molecules
  • Polarization
  • Rayleigh Scattering
  • Relaxation Time
  • Scattering

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Molecular Photonics/Laser Physics