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research article
Suppression of the zero-order in off-axis digital holography through nonlinear filtering
2009
We present experimental validation of a new reconstruction method for off-axis digital holographic microscopy (DHM). This method effectively suppresses the object auto-correlation — namely the zero-order term — from holographic data, thereby improving the reconstruction bandwidth of complex wavefronts. The algorithm is based on nonlinear filtering; it can be applied to standard DHM setups, with realistic recording conditions. We study the robustness of the technique under different experimental configurations, and quantitatively demonstrate its enhancement capabilities on phase signals.
Type
research article
Web of Science ID
WOS:000272284600024
Authors
•
Seelamantula, Chandra Sekhar
•
Kühn, Jonas
•
Unser, Michael
•
Publication date
2009
Published in
Volume
48
Issue
32
Start page
H186
End page
H195
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
October 30, 2009
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