Multiwave Diffraction Analysis of Transmission Phase Gratings

Abstract

A multiwave coupled wave analysis of phase modulated, transmission gratings is made. The aim is to calculate the first order diffraction efficiency as a function of the modulation and a volume parameter, for arbitrary phase profiles. Sinusoidal, square, triangular and sawtooth gratings are investigated in detail through the thin, multiwave and volume diffraction regimes, using analytic and numerical techniques. The relative merits of these profiles are discussed in terms of efficiency and ease of fabrication. High efficiencies (>90%) are found to be possible in the multiwave regime. Great Britain. (RRH)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1989
Accession Number
ADA218674

Entities

People

  • C. W. Slinger

Organizations

  • Royal Signals and Radar Establishment

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplitude
  • Boundaries
  • Bragg Angle
  • Dielectric Permittivity
  • Differential Equations
  • Diffraction
  • Diffraction Analysis
  • Electromagnetic Radiation
  • Equations
  • Materials
  • Modulation
  • Optics
  • Phase Modulation
  • Phase Velocity
  • Square Waves
  • Wave Equations
  • Waves

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Microwave Engineering.
  • Radar Systems Engineering.