External Nonlinear Focusing and Its Application to Ultrafast Optical Power Limiting,

Abstract

A simple model for external self-focusing or defocusing of a laser beam by a thin nonlinear phase corrector has been explored by numerical computation and by mathematical analysis. Utilising the mechanisms of nonlinear absorption and refraction, it is shown how passive and ultrafast power- or energy-limiting device can be constructed, with the ultimate aim of protecting optical or infrared equipment from excessive laser powers. (Australia)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1986
Accession Number
ADA174684

Entities

People

  • J. A. Hermann
  • S. R. Kennett

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Amplitude
  • Coefficients
  • Computer Programs
  • Diffraction
  • Equations
  • Far Field
  • Focal Planes
  • Indium Antimonides
  • Infrared Equipment
  • Laser Beams
  • Materials
  • Mathematical Analysis
  • Radiation
  • Refraction
  • Refractive Index

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Systems Analysis and Design

Technology Areas

  • Directed Energy