Suppression of the zero-order term in off-axis digital holography through nonlinear filtering

Pavillon, Nicolas and Seelamantula, Chandra Sekhar and Kuehn, Jonas and Unser, Michael and Depeursinge, Christian (2009) Suppression of the zero-order term in off-axis digital holography through nonlinear filtering. In: Applied optics, 48 (34). H186-H195.

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Abstract

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.

Item Type:	Journal Article
Publication:	Applied optics
Publisher:	Optical Soc Amer
Additional Information:	copyright of this article belongs to Optical Soc Amer.
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	10 Jan 2010 12:12
Last Modified:	19 Sep 2010 05:53
URI:	http://eprints.iisc.ac.in/id/eprint/25245

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