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Proceedings Paper

Optimum and applications of photorefractive spatial light modulator in optical pattern recognition
Author(s): Xiujian Li; Wenhua Hu; Hui Jia; Jiankun Yang; Yisheng Yang; Shaofeng Guo
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Paper Abstract

With excellent physical properties the photorefractive crystals, such as BSO (Bi12SiO20), BaTiO3 and GaAs materials, have, can be widely used in optical correlator to implement auto pattern recognition. As the basic devices in optical correlator, the properties of optically-addressed spatial light modulator are very important. By analyzing the dynamic process of the BSO spatial light modulator, especially the changes of the read-out light while in writing under various operation modes, the distinctness between various operation modes is summarize. Furthermore, considered with the photo-induced current pulses, the method to optimize the BSO spatial light modulator is proposed. The BSO spatial light modulator working in optimum operation mode is used to design a optical correlator to implement auto pattern recognition.

Paper Details

Date Published: 13 May 2010
PDF: 8 pages
Proc. SPIE 7696, Automatic Target Recognition XX; Acquisition, Tracking, Pointing, and Laser Systems Technologies XXIV; and Optical Pattern Recognition XXI, 769621 (13 May 2010); doi: 10.1117/12.850642
Show Author Affiliations
Xiujian Li, National Univ. of Defense Technology (China)
Wenhua Hu, National Univ. of Defense Technology (China)
Hui Jia, National Univ. of Defense Technology (China)
Jiankun Yang, National Univ. of Defense Technology (China)
Yisheng Yang, National Univ. of Defense Technology (China)
Shaofeng Guo, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 7696:
Automatic Target Recognition XX; Acquisition, Tracking, Pointing, and Laser Systems Technologies XXIV; and Optical Pattern Recognition XXI
Firooz A. Sadjadi; Abhijit Mahalanobis; David P. Casasent; Tien-Hsin Chao; Steven L. Chodos; William E. Thompson, Editor(s)

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