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Suppression of the Zero-Order Term in Off-Axis Digital Holography Through Nonlinear Filtering

N. Pavillon, C.S. Seelamantula, J. Kühn, M. Unser, C. Depeursinge

Applied Optics, vol. 48, no. 34, pp. H186-H195, December 2009.



We present experimental validation of a new reconstruction method for off-axis digital holographic microscopy (DHM). This method effectively suppresses the object autocorrelation, namely, the zero-order term, from holographic data, thereby improving the reconstruction bandwidth of complex wavefronts. The algorithm is based on nonlinear filtering and 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.


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AUTHOR="Pavillon, N. and Seelamantula, C.S. and K{\"{u}}hn, J. and
        Unser, M. and Depeursinge, C.",
TITLE="Suppression of the Zero-Order Term in Off-Axis Digital Holography
        Through Nonlinear Filtering",
JOURNAL="Applied Optics",
YEAR="2009",
volume="48",
number="34",
pages="H186--H195",
month="December",
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