1. Diffraction and light propagation
The principle of holography is based on the phenomena of interference, diffraction and light propagation. It involves a recording phase and a reconstruction phase. A coherent light wave illuminates an object or group of objects. The wave reflected or transmitted by these objects is superimposed on a reference wave, and the interference pattern produced by this superposition, the hologram, is recorded. The term "in-line holography" is used when the illumination beam and the reference beam are one and the same.
Reconstruction involves estimating the position, shape and optical properties of objects from the hologram. The term restitution, often used in holography, refers to the reading procedure in optical holography, which "restores" a 3D image of the object for the observer. In digital holography, reconstruction consists...
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Diffraction and light propagation
On-line digital holography implementation
Bibliography
Websites
Online codes :
MATLAB code for online hologram simulation and reconstruction using the plane-wave spectrum method (Tatiana Latychevskaia and Hans-Werner Fink), https://www.mathworks.com/matlabcentral/fileexchange/59939-holography-with-plane-waves-inline-in-line...
Events
Congress:
Digital holography meeting applied to fluid metrology, five editions since 2010 – https://holophi5.sciencesconf.org/
Directory
Laboratories – Design offices – Schools – Research centers (non-exhaustive list)
The following is a non-exhaustive alphabetical list of French research teams using on-line digital holography for fluid mechanics measurements (laboratories working with off-axis fixtures are not listed).
COmplexe de Recherche Interprofessionnel en Aérothermochimie, UMR CNRS 6614
University...
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