Paper
9 October 1998 Symmetry filter using anisotropic self-diffraction in BaTiO3
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Abstract
Using anisotropic self-diffraction in BaTiO3, we propose a novel optical symmetry filter which the filter allows us to distinguish a centro-symmetric pattern from a non-centro- symmetric pattern easily with scale invariance. This filter is self-referential, so no extra reference target is required. Both of the theoretical explanation and experimental demonstration are shown.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bor Wang, Ching-Cherng Sun, and Arthur E. T. Chiou "Symmetry filter using anisotropic self-diffraction in BaTiO3", Proc. SPIE 3470, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV, (9 October 1998); https://doi.org/10.1117/12.326863
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KEYWORDS
Anisotropic filtering

Crystals

Diffraction

Ferroelectric materials

Laser crystals

Fourier transforms

Optical filters

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