Suppression of the zero-order term in off-axis digital holography through nonlinear filtering
Applied Optics, Vol. 48, Issue 34, pp. H186-H195 (2009)
http://dx.doi.org/10.1364/AO.48.00H186
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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.
© 2009 Optical Society of America
OCIS Codes
(100.2000) Image processing : Digital image processing
(100.3010) Image processing : Image reconstruction techniques
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(180.3170) Microscopy : Interference microscopy
(090.1995) Holography : Digital holography
(100.3175) Image processing : Interferometric imaging
History
Original Manuscript: September 21, 2009
Revised Manuscript: October 21, 2009
Manuscript Accepted: October 22, 2009
Published: November 9, 2009
Virtual Issues
Vol. 5, Iss. 1 Virtual Journal for Biomedical Optics
Citation
Nicolas Pavillon, Chandra Sekhar Seelamantula, Jonas Kühn, Michael Unser, and Christian Depeursinge, "Suppression of the zero-order term in off-axis digital holography through nonlinear filtering," Appl. Opt. 48, H186-H195 (2009)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-48-34-H186
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