Parametric Acoustic Array Formation Via Weak Collinear and Noncollinear INteraction in Diepersive Fluids.

Abstract

The effect of dispersion on parametric arrays formed by Gaussian beams is investigated via solutions of the nonlinear paraxial wave equation. Analytical solutions are obtained by employing the quasilinear approximation; the results are thus restricted to weakly nonlinear interactions. Both (i) collinear and (ii) noncollinear interactions of the primary beams are considered. (i) Axial field curves and farfield directivity patterns are presented for the difference-frequency signal resulting from collinear interaction of Gaussian beams.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1983
Accession Number
ADA130533

Entities

People

  • Mark F. Hamilton

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Waves
  • Acoustics
  • Computational Science
  • Differential Equations
  • Diffraction
  • Doppler Effect
  • Equations
  • Geometry
  • Integrals
  • Scattering
  • Standing Waves
  • Two Dimensional
  • Underwater Acoustics
  • Wave Equations
  • Wave Propagation
  • Waveforms

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Optical Physics and Photonics.
  • Wave Propagation and Nonlinear Chaotic Dynamics.