Purely numerical compensation for microscope objective phase curvature in digital holographic microscopy: influence of digital phase mask position
JOSA A, Vol. 23, Issue 11, pp. 2944-2953 (2006)
http://dx.doi.org/10.1364/JOSAA.23.002944
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Abstract
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.
© 2006 Optical Society of America
OCIS Codes
(090.1000) Holography : Aberration compensation
(090.1760) Holography : Computer holography
(100.3010) Image processing : Image reconstruction techniques
(110.0180) Imaging systems : Microscopy
ToC Category:
Holography
History
Original Manuscript: March 17, 2006
Revised Manuscript: June 1, 2006
Manuscript Accepted: June 3, 2006
Virtual Issues
Vol. 1, Iss. 12 Virtual Journal for Biomedical Optics
Citation
Frédéric Montfort, Florian Charrière, Tristan Colomb, Etienne Cuche, Pierre Marquet, and Christian Depeursinge, "Purely numerical compensation for microscope objective phase curvature in digital holographic microscopy: influence of digital phase mask position," J. Opt. Soc. Am. A 23, 2944-2953 (2006)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josaa-23-11-2944
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