What is Holography Holography is a technique that enables a wavefront to be recorded and later reconstructed. Holography is best known as a method of generating three-dimensional images, but it also has a wide range of other applications. In principle, it is possible to make a hologram for any type of wave. Gabor, who invented holography in 1947, introduced the term using two Greek words: “Holos” - whole and “Graphe” - writing. It simply means that the recorded holographic image of the object contains whole optical information about the object – Amplitude and Phase information of the light scattered from the object. Ideally, the hologram is a three-dimensional image reproduced from an interference pattern recorded by coherent light beans and holography is a process of reconstructing and writing a hologram. White light from the sun or a light bulb is a combination of every color of light in the spectrum, which is not useful for a hologram. However, a laser shines light in a thin,