title: Real-time edge-enhanced optical correlation with a cerium-doped potassium sodium strontium barium niobate photorefractive crystal.
abstract: The nonlinear diffraction property of a volume grating written by two-wave mixing in a cerium-doped potassium sodium strontium barium niobate crystal is applied in a coherent image processing system to obtain real-time image edge enhancement as well as edge-enhanced optical correlation. The theoretical analysis of the correlator is given, and the experimental results of optical correlation are presented, which are compared with the computer-simulated results.
authors.affiliation: Institute of Modern Optics, Opto-Electronic Information Science and Technology Laboratory of the Education Ministry of China, Nankai University, Tianjin 300071, China.
authors.forename: B L
authors.initials: BL
authors.lastname: Liang
authors.forename: Z Q
authors.initials: ZQ
authors.lastname: Wang
authors.forename: G G
authors.initials: GG
authors.lastname: Mu
authors.forename: J H
authors.initials: JH
authors.lastname: Guan
authors.forename: H L
authors.initials: HL
authors.lastname: Liu
authors.forename: C M
authors.initials: CM
authors.lastname: Cartwright