![]() ![]() The resulting digital image is then printed onto a suitable mask or film and illuminated by a suitable source to reconstruct the wavefront of interest. Holograms can also be computer-generated by modelling the two wavefronts and adding them together digitally. When only the second wavefront illuminates the interference pattern, it is diffracted to recreate the original wavefront. ![]() In principle, it is possible to make a hologram for any type of wave.Ī hologram is made by superimposing a second wavefront (normally called the reference beam) on the wavefront of interest, thereby generating an interference pattern which is recorded on a physical medium. Holography is best known as a method of generating real three-dimensional images, but it also has a wide range of other applications. ![]() Holography is a technique that enables a wavefront to be recorded and later re-constructed. Two photographs of a single hologram taken from different viewpoints ![]()
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