Colorization of magnetic hologram images with optical space division method

Kazuki Nakamura, Kei Kudo, Taichi Goto, Hiroyuki Takagi, Pang Boey Lim, Mitsuteru Inoue

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We have developed magneto-optic spatial light modulators (MOSLMs) with submicrometer-size magnetic pixels for wide-viewing-angle holographic displays (3-D-MOSLM) that are driven by the thermomagnetic recording. The holographic images were reconstructed by the magnetic hologram pattern on the MOSLM. In this paper, we have studied colorization of reconstruction images of the MOSLMs using optical space division method. This method used some 3-D-MOSLMs to represent intermediate colors. The magnetic films were polycrystalline bismuth, dysprosium, and aluminum substituted yttrium iron garnet (BiDyYFeAlG) films with perpendicular magnetization. The thickness of BiDyYFeAlG films was designed for each wavelength. The MOSLM represented (3-D) images with intermediate colors that were synthesized 3-D images with red and green colors. In addition, tones of intermediate colors were represented by controlling intensity of each reference light. These results demonstrated that 3-D-MOSLMs have promise for full-colorized holographic 3-D displays.

Original languageEnglish
Article number6971501
JournalIEEE Transactions on Magnetics
Issue number11
Publication statusPublished - 2014 Nov 1
Externally publishedYes


  • 3-D display
  • magnetic hologram
  • magneto-optic (MO) effects
  • perpendicular magnetization film

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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