Rhhyphen;doped LiNbO3as an improved new material for reversible holographic storage

摘要

A poled single crystal of LiNbO3doped with Rh as a new impurity is described in terms of its storage performance in producing highhyphen;efficiency simple phase holograms. Doping with Rh introduces a new absorption band peaking around 4880 Aring;, and dramatically improves the recording sensitivity, diffraction efficiency, erasing sensitivity, and persistence of holograms over the undoped crystal. Anomalous optical erasure, possibly due to selfhyphen;enhancement of the hologram, is also observed in our doped crystal.