Principles of Holography
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Holography, being a unique imaging technique that does not use lenses, is based on the most fundamental properties of waves, interference and diffraction. Holography is therefore applicable to all kinds of waves — light, X-ray, sound, electron, or neutron waves — regardless of whether there is a lens involved for the wave. The major feature of holography is that a complete wave (i.e., a complex amplitude) can be reconstructed from an exposed film called a hologram (a photograph containing all information, amplitude and phase). For this reason, laser holography can produce a far more realistic stereoscopic image than can be provided by any other technique.
KeywordsPoint Object Reference Wave Zone Plate Transmitted Amplitude Object Wave
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