Development of zinc oxide spatial light modulator for high-yield speckle modulation

Naoya Tate, Tadashi Kawazoe, Shunsuke Nakashima, Wataru Nomura, Motoichi Ohtsu

Research output: Contribution to journalArticlepeer-review


In order to realize high-yield speckle modulation, we developed a novel spatial light modulator using zinc oxide single crystal doped with nitrogen ions. The distribution of dopants was optimized to induce characteristic optical functions by applying an annealing method developed by us. The device is driven by a current in the in-plane direction, which induces magnetic fields. These fields strongly interact with the doped material, and the spatial distribution of the refractive index is correspondingly modulated via external control. Using this device, we experimentally demonstrated speckle modulation, and we discuss the quantitative superiority of our approach.

Original languageEnglish
Pages (from-to)1264-1270
Number of pages7
JournalIEICE Transactions on Electronics
Issue number11
Publication statusPublished - Nov 2016

All Science Journal Classification (ASJC) codes

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


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