DEVICES UTILIZING IMPROVED LINBO3 HOLOGRAPHIC MEDIUM

摘要

Volume holographic devices utilize lithium niobate, LiNbO3, containing added iron ions. The added ions provide for improved resolution and contrast. Utilization is made of the improved material in devices designed for multiple image recording and readout. In a preferred embodiment, selection, as among images, is determined by the angle of incidence of the interrogating beam.