USE OF BISTABLE CENTERS IN CDF2 FOR HOLOGRAPHIC RECORDING

It is shown that metastable centers in various semiconductors can be u sed for efficient hologram recording. This type of holographic materia ls has a very high dynamic range and sensitivity. Their major drawback for possible applications is low metastability temperature. This prob lem can be overcome by using CdF2:Ga crystals, which exhibit metastabi lity below 240 K. This material is suitable for writing thick and mult iple holograms both in static and dynamic regimes.