Real-time holography for optical processing using photorefractive crystals

摘要: In this paper, we describe different schemes of phase conjugation during formation the self-organized hexagonal spot array in photorefractive crystal KNbO 3 . Both forward and backward phase-conjugated beams are observed two-beam coupling geometry. We present also theoretical description multiplexed conjugation, introducing concept scattering wave-vector diagrams that visualize contributions from transmission reflection gratings.