HOLOGRAPHIC RECORDING IN SPECIALLY DOPED LITHIUM-NIOBATE CRYSTALS

A set of twelve specially doped lithium niobate crystals were Abstract : grown to test the effect of the dopant on holographic recording in t he crystals via the photorefractive effect. The crystals were doped wi th Ce, Co, Cr, Cu, Fe, Mn, Ni, Rh, Tb, Fe: Ce, Fe: Cr, and Fe: Mn. The transmission spectra was measured for each crystal and holograms have been written in each of the crystals with wavelengths from 457 nm to 671 nm. The wavelength sensitivity, scattering, and stability of the h olograms varied substantially among the crystals. A qualitative descri ption of the hologram's properties and a comparison of sensitivities b etween the crystals will be presented. (C) 1998 Optical Society of Ame rica.