Holographic Discs-Volumetric Media and Quality Data Storage Media

3D hologram technology is one of the most advanced technologies today. Holograms are our real future, and the study of this method is one of the most important areas of our time. Three-dimensional holograms have a wide range of applications. Spatial holograms are already being used more and more at presentations, conferences, exhibitions, even at meetings. Nowadays the industry demands a new type of carriers with volume. That is why holographic methods of information processing attract a lot of attention. Based on the interference system of initial data recording they are used for creation of high capacity holographic storage devices, fast, also, reliable and providing protection from unauthorized access to data. Therefore, recording/reading from discs can be obtained by changing the wavelength or phase shift of the reference beam as discussed in the article but also considering the ability of the volume hologram to multiplex, that is the ability to store several different impressions of data in the same recording volume, the following methods have been developed as well. This article tells about these, Recording/Reading methods and also discusses a mathematical model for writing to holographic disks, using the example of the “holographic library” project. #COMESYSO1120.