Symmetry filter using anisotropic self-diffraction in BaTiO3

Bor Wang; Ching Cherng Sun; Arthur E.T. Chiou

doi:10.1117/12.326863

Symmetry filter using anisotropic self-diffraction in BaTiO₃

Bor Wang, Ching Cherng Sun, Arthur E.T. Chiou

Research output: Contribution to journal › Conference article › peer-review

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.

Original language	English
Pages (from-to)	209-213
Number of pages	5
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3470
DOIs	https://doi.org/10.1117/12.326863
State	Published - 1998
Event	Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV - San Diego, CA, United States Duration: 22 Jul 1998 → 23 Jul 1998

Keywords

Pattern recognition and feature extraction
Photorefractive nonlinear optics
Volume holographic grating

Access to Document

10.1117/12.326863

Cite this

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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.",

keywords = "Pattern recognition and feature extraction, Photorefractive nonlinear optics, Volume holographic grating",

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AU - Wang, Bor

AU - Sun, Ching Cherng

AU - Chiou, Arthur E.T.

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AB - 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.

KW - Pattern recognition and feature extraction

KW - Photorefractive nonlinear optics

KW - Volume holographic grating

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