Article | REF: RE171 V1

Optoelectronic calculation and calculated holograms

Author: Pierre AMBS

Publication date: November 10, 2013

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2. Calculated holograms

2.1 Presentation

Like optically recorded holograms, computer-calculated holograms aim to record and reconstruct a complex wavefront (amplitude and phase). Whereas for an optically recorded hologram, the object or wavefront to be recorded must physically exist, for a computed hologram the wavefront is entirely computed. Computed holography therefore benefits from the flexibility and versatility of computer calculation, without the need for a complex and delicate physical recording process. Calculated hologram terminology has evolved over the years, originally using the terms computer-calculated hologram (CCH) or computer-synthesized hologram (CSH). As manufacturing techniques and applications evolved, the term Diffractive Optical Element (DOE) came into common use. Today, some specialists...

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