Materials Used in Holography

Apart from the laser the active materials in holography are those that are used to record the image onto a substrate. There are four main types of materials used for recording the image  

Several companies have been involved in the development of photopolymers specif- 

The DnPont photopolymeric system consists of polymeric binder resins, e.g. PVA, PMMA, cellnlose acetates and styrene-acrylates, reactive acrylic monomers, e.g. aryloxy or alkoxy acrylates, a dye sensitiser and a radical or charge transfer photoinitiator, e.g. DEAW and HABI respectively (see Chapter 4, section 4.5.2), and plasticisers. The process for producing the refractive index structures is as follows  

Patterned exposure, (twin laser beams for holograms and photomasks for 

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