Purely numerical compensation for microscope objective phase curvature in digital holographic microscopy: influence of digital phase mask position

Détails

ID Serval
serval:BIB_DAC33B6B26E7
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Purely numerical compensation for microscope objective phase curvature in digital holographic microscopy: influence of digital phase mask position
Périodique
Journal of the Optical Society of America. A, Optics, image science, and vision
Auteur(s)
Montfort Frédéric, Charrière Florian, Colomb Tristan, Cuche Etienne, Marquet Pierre, Depeursinge Christian
ISSN
1084-7529
Statut éditorial
Publié
Date de publication
2006
Peer-reviewed
Oui
Volume
23
Numéro
11
Pages
2944-2953
Langue
anglais
Notes
SAPHIRID:67335
Résumé
Introducing a microscope objective in an interferometric setup induces a phase curvature on the resulting wavefront. In digital holography, the compensation of this curvature is often done by introducing an identical curvature in the reference arm and the hologram is then processed using a plane wave in the reconstruction. This physical compensation can be avoided, and several numerical methods exist to retrieve phase contrast images in which the microscope curvature is compensated. Usually, a digital array of complex numbers is introduced in the reconstruction process to perform this curvature correction. Different corrections are discussed in terms of their influence on the reconstructed image size and location in space. The results are presented according to two different expressions of the Fresnel transform, the single Fourier transform and convolution approaches, used to propagate the reconstructed wavefront from the hologram plane to the final image plane.
Pubmed
Web of science
Création de la notice
10/03/2008 17:40
Dernière modification de la notice
03/03/2018 21:55
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