The three-dimensional images produced by holograms have been used in various fields, such as technical, educational also in advertising, artistic display etc.
Holographic diffraction gratings: The interference of two plane wavefronts of laser beams on the surface of holographic plate produces holographic diffraction grating. The lines in this grating are more uniform than in case of conventional grating.
Hologram is a reliable object for data storage, because even a small broken piece of hologram contains complete data or information about the object with reduced clarity.
The information-holding capacity of a hologram is very high because many objects can be recorded in a single hologram, by slightly changing ...
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