title: Optical symmetry filtering by use of anisotropic self-diffraction in BaTiO3 crystals.
abstract: We propose what we believe to be a novel and simple method for optical symmetry filtering, using anisotropic self-diffraction in BaTiO(3) crystals. This method allows us to distinguish a centrosymmetric pattern from a noncentrosymmetric pattern easily with scale invariance. It is self-referential; no extra reference element is required. Both the theory and the experiment are demonstrated.
authors.affiliation: Institute of Optical Sciences, National Central University, Chung-Li, Taiwan. ccsun@ios706.ios.ncu.edu.tw
authors.forename: C C
authors.initials: CC
authors.lastname: Sun
authors.forename: B
authors.initials: B
authors.lastname: Wang
authors.forename: W C
authors.initials: WC
authors.lastname: Su
authors.forename: A E
authors.initials: AE
authors.lastname: Chiou
authors.forename: J Y
authors.initials: JY
authors.lastname: Chang