Optical image recognition using photorefractive crystal plates

Mei Li Hsieh*, Shy C. Lin, Ken-Yuh Hsu, Tai Chiung Hsieh, S. P. Lin, T. S. Yeh, Longjang Hu, S. L. Tu, Horng Chang

*Corresponding author for this work

Research output: Contribution to journalConference article

Abstract

We demonstrate a real-time optical image recognition system using photorefractive thin plates. The effects of donor/acceptor concentration ratio in thin lithium niobate crystal plates on the photorefractive response time and the grating diffraction efficiency are presented.

Original languageEnglish
Pages (from-to)228-238
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3137
DOIs
StatePublished - 1 Dec 1997
EventPhotorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications III - San Diego, CA, United States
Duration: 28 Jul 199728 Jul 1997

Keywords

  • Optical image recognition
  • Optical neural networks
  • Photorefractive crystals

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  • Cite this

    Hsieh, M. L., Lin, S. C., Hsu, K-Y., Hsieh, T. C., Lin, S. P., Yeh, T. S., Hu, L., Tu, S. L., & Chang, H. (1997). Optical image recognition using photorefractive crystal plates. Proceedings of SPIE - The International Society for Optical Engineering, 3137, 228-238. https://doi.org/10.1117/12.287782