Gray apertures for holographic data storage system

Jenn-Hawn Tarng, Chien Fu Tseng*, Chih Ming Lin, Feng Hsiang Lo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


In this paper, we propose the idea of gray optical apertures in contrast to the conventional binary apertures for holographic data storage (HDS). A gray aperture can be realized by a liquid crystal display or a binary aperture with a coating near the edge. In our simulation, HDS with a gray aperture shows a better page signal-to-noise ratio and modeling accuracy than HDS using a binary aperture.

Original languageEnglish
Pages (from-to)5957-5959
Number of pages3
JournalJapanese Journal of Applied Physics
Issue number7 PART 2
StatePublished - 18 Jul 2008


  • Aperture
  • Filter
  • Holographic
  • Optical storage

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