Image focusing properties in reconstructing digital holograms

D. Alfieri; G. Coppola; S. DeNicola; P. Ferraro; A. Finizio; S. Grilli; G. Pierattini; V. Striano

doi:10.1117/12.612935

13 June 2005 Image focusing properties in reconstructing digital holograms

D. Alfieri, G. Coppola, S. DeNicola, P. Ferraro, A. Finizio, S. Grilli, G. Pierattini, V. Striano

Proceedings Volume 5856, Optical Measurement Systems for Industrial Inspection IV; (2005) https://doi.org/10.1117/12.612935
Event: Optical Metrology, 2005, Munich, Germany

Abstract

A two stage method for allowing direct perfect superimposition and comparison of Fresnel-transform reconstructions of digital holograms recorded at different wavelengths is proposed and demonstrated. The method allows to adjust the size of the reconstruction pixel by varying the reconstruction distance of the first stage. Demonstration is given by superimposing in focus numerical reconstructions of holograms recorded at different wavelengths. The method can be potentially very useful for real-time monitoring in biological processes.

Citation Download Citation

D. Alfieri, G. Coppola, S. DeNicola, P. Ferraro, A. Finizio, S. Grilli, G. Pierattini, and V. Striano "Image focusing properties in reconstructing digital holograms", Proc. SPIE 5856, Optical Measurement Systems for Industrial Inspection IV, (13 June 2005); https://doi.org/10.1117/12.612935

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