Holography volume

Although, in contrast to free radical polymerizations, cationic polymerizations are unaffected by O2, their importance is somewhat limited by the scarcity of appropriate macromolecules and suitable photoinitiators [3]. However, this does not apply to the photopolymerization of low molar mass epoxides (see Section 10.3). In this context, applications of photo-cross-linked epoxides in various fields such as stereolithography, volume holography, and surface coating are notable [16]. 

The term volume holography refers to recording plates with a thickness of up to a few millimeters. In such voluminous matrices, data storage in three dimensions is possible. This implies an enormous increase in storage capacity in comparison with other methods. If multiplexing techniques (see Section 12.1) are applied, thousands of holograms can be superimposed in the same plate. 

Chart n.lO Structures of typical epoxide monomers employed in volume holography [78]. 

Table 12.2 Light-sensitive materials suitable for volume holography.

T. J. Trentler, J. E. Boyd, V. L. Colvin, (2002) "Epoxyl resin-photopolymer composites for volume holography." Chem. Mater., 12,1431-1438. 

Solymer, L., and Cooke, D. J. (1981). Volume Holography and Volume Gratings, Academic Press, London. 

TRE 00] Trentler T., Boyd J., Colvin V., Epoxy resin photopolymer composites for volume holography . Chemistry of Materials, vol. 12, pp. 1431-1438, 2000. 

Garnweitner G (2007) Large-scale synthesis of oigtmophilic zirconia nemoparticles and their application in organic-inorganic nanocomposites for efficient volume holography. Small 3(9) 1626-1632... 

---