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Dennis Gabor

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Dennis Gabor was a Hungarian-British electrical engineer and physicist who invented holography, for which he received the 1971 Nobel Prize in Physics. He obtained British citizenship in 1934, and spent most of his life in England.

Gabor, c. 1971

Gabor in 1971

Holography

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Holography is a technique that enables a wavefront to be recorded and later reconstructed. It is best known as a method of generating three-dimensional images, and has a wide range of other uses, including data storage, microscopy, and interferometry. In principle, it is possible to make a hologram for any type of wave.

Two photographs of a single hologram taken from different viewpoints

Horizontal symmetric text, by Dieter Jung

This is a photograph of a small part of an unbleached transmission hologram viewed through a microscope. The hologram recorded an image of a toy van and car. It is no more possible to discern the subject of the hologram from this pattern than it is to identify what music has been recorded by looking at a CD surface. The holographic information is recorded by the speckle pattern.

Peace Within Reach, a Denisyuk DCG hologram by amateur Dave Battin