ABSTRACT
The recording materials used in modern polychromatic display holography are fundamental to achieving high image delity. It is perhaps not surprising that the earlier holographic recording materials used in holography are simply not suitable for recording full-colour holograms; polychromatic holograms put far higher demands on the recording material. Moreover, many of the earlier silver halide materials produced by commercial manufacturers such as Agfa and Kodak are no longer on the market. Additionally, these materials were not panchromatic, nor did they have sufcient resolving power to be used for recording colour holograms. The rst commercial photopolymer materials did have sufcient resolving power, but many were only monochromatic. To record full-colour holograms, panchromatic materials with a resolving power of more than 10,000 line pairs/mm are required. In this chapter, we shall focus our attention on the materials required for recording ultra-realistic colour holograms and describe their characteristics and the demands put on them by this application.
