Definition of holography Holography

ho•log•ra•phy

We found 5 definitions of holography from 5 different sources.

What does holography mean?

WordNet

Noun

Plural: holographies

holography - the branch of optics that deals with the use of coherent light from a laser in order to make a hologram that can then be used to create a three-dimensional image

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Wiktionary

holography (Noun)
A technique for recording, and then reconstructing, the amplitude and phase distributions of a coherent wave disturbance; used to produce three-dimensional images or holograms.

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holography
A technique that allows the light scattered from an object to be recorded and later reconstructed so that it appears as if the object is in the same position relative to the recording medium as it was when recorded.

Wikipedia

Holography is a method that uses the wave character of light, which dedicts an exact description, that goes beyond the options of the classic fotography.

Difference between holography and photography:.

In contrast to photography, holography not only records the intensity of light, but also its difference of phase. All pieces of information reflected by the object, are recorded.

Functionality:.

At holography you basically work with two (rather three) waves, the so called reference wave and the exposure wave (object wave). With the reference wave it is possible to save the phase information in the form of a light-dark model on a film.

The object wave and reference wave must have the same wave length.

History of holography:.

The most famous person linked to the history of holography is the physician Dennis Gábor, the inventor of the hologram.

In fact his discovery in 1947, which demonstrated the highlight of a long development, was not supposed to display three-dimensional objects, but to improve the resolving capacity of microscopes.

Chronology:.

• 1947 Dennis Gábor developed the principal of holography

• 1960 Theodor Maiman invented the Laser (Light Amplification by Stimulated Emission of Radiation)

• 1963 Emmeth Leith and Juris Upatnieks improved the recording technique

• 1964 Production of the firsthologramm by Leith and Upatnieks ("Train and Bird").

• 1965 Juri Nikolajewitsch Denisjuk invented the white-light-holography

• 1967 The first hologramm of a person

• 1968 Stephen