Magneto-Optic Effects at 1.15 micrometer in Gd(.5)Y(2.5)Ga(1) Iron Garnet Thin Film Waveguides

Abstract

The authors have built an experimental setup which enables them to view the magnetic domains in the film and measure the conversion efficiency simultaneously. Reasonable mode conversion efficiency is obtained, only when the stripe magnetic domains in the film are eliminated along the line of light propagation. The bias field (H(a)) required to annihilate the stripe domain is dependent on the direction of the bias field with respect to the axes of magnetic anisotropy. The annihilation field (H(a)) is found to be maxima, of the order of 50 Oe, at O, plus or minus 60, plus or minus 120 degrees from the easy axis, and minima of the order of 2 Oe at plus or minus 45 degrees from the hard axis. (Modified author abstract)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1974
Accession Number
AD0780446

Entities

People

  • Axel R. Reisinger
  • Samuel C. Tseng

Organizations

  • IBM Thomas J. Watson Research Center

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Contracts
  • Films
  • Magnetic Domains
  • Magnetic Fields
  • Magneto-Optic Effects
  • Magneto-Optics
  • Measurement
  • Modulation
  • New York
  • Optical Waveguides
  • Orientation (Direction)
  • Security
  • Strip Transmission Lines
  • Symmetry
  • Thin Films
  • Transmission Lines
  • Waveguides

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Microwave Engineering.
  • Solar Physics