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6. Application overview
This section provides a brief overview of the applications that make direct use of a hologram's ability to record a light wave and reproduce it at will in amplitude and phase (relief). Some of these applications have become industrialized (credit card holograms) or are likely to do so increasingly in the future (holographic optical elements, microholography, etc.); others are at the research stage (cineholography, museology, etc.).
6.1 Microparticle analysis
Holograms record light waves scattered or transmitted by an object and faithfully reproduce them. This unique property is leading to new scientific and industrial applications. A fleeting phenomenon can be frozen by holography, using a pulsed laser with an ultra-short emission time (20 billionths of a second,...
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