EXPERIMENTS ON NONLINEAR OPTICS

Abstract

Preliminary results on self-trapped filaments in different liquids and liquid mixtures are reported. It is shown that stimulated Raman and Brillouin scattering is probably not responsible for the filament formation. Further work is needed to determine whether Kerr effect or field-induced phase transition is the principal mechanism for self-trapping. Difference-frequency generation in the submillimeter region from quartz and LiNbO3 by beating of two ruby laser beams is reported. The difference-frequency is tunable through thermal tuning of the laser frequencies. This is the first coherent, tunable, far-infrared pulse generator ever constructed.

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Document Details

Document Type
Technical Report
Publication Date
Jun 05, 1968
Accession Number
AD0670615

Entities

People

  • Y. R. Shen

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Brillouin Scattering
  • Demographic Cohorts
  • Difference Frequency
  • Generators
  • Infrared Pulses
  • Kerr Effects
  • Lasers
  • Nonlinear Optics
  • Optics
  • Phase Transformations
  • Pulse Generators
  • Radiation
  • Refractive Index
  • Ruby Lasers
  • Scattering
  • Security
  • Transitions

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy