Noise and aliases in off-axis and phase-shifting holography
Résumé
We have compared the respective efficiencies of off-axis and phase-shifting holography in terms of noise and aliases removal. The comparison is made by analyzing holograms of an USAF target backlit with laser illumination, recorded with a charge-coupled device camera. We show that it is essential to remove the LO beam noise, especially at low illumination levels.
Domaines
Optique [physics.optics]
Origine : Fichiers produits par l'(les) auteur(s)
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