August 2013
Beginner to intermediate
632 pages
16h 9m
English
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CHAPTER 12
Holography
12.1 Introduction
The conventional photography records only the intensities of light coming from an object. It fails to record the phases of the waves that come from the objects. Hence, they show two-dimensional images of three-dimensional objects. In 1948, Dennis Gabor, a British scientist, developed a method of recording and producing three-dimensional images of objects through interference phenomena of coherent light known as holography. In Greek, ‘holo’ means ‘whole’ or ‘complete’, ‘holography’ means ‘complete recording’ i.e., the intensities and phase of the waves that come from the objects are recorded. In 1971, he received noble prize for his efforts.
12.2 Basic principle of holography
An object is illuminated with ...
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