Zero-order elimination in digital holography by use of two holograms: one is made by tilting the CCD

Mohammad Abolhassani; Yadollah Rostami

doi:10.1117/12.890197

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27 May 2011 Zero-order elimination in digital holography by use of two holograms: one is made by tilting the CCD

Mohammad Abolhassani, Yadollah Rostami

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Proceedings Volume 8082, Optical Measurement Systems for Industrial Inspection VII; 80822H (2011) https://doi.org/10.1117/12.890197
Event: SPIE Optical Metrology, 2011, Munich, Germany

Abstract

In digital holography interference fringe pattern is formed on a computer-aided CCD camera target and recorded by the computer. The object wave is reconstructed electronically by using this numeric hologram. In an off-axis holography the zero order and two first orders are formed in separate positions. However the zero order decreases the quality of any of the two formed images. In this process a zero- order component appears. This component decreases quality of the reconstructed image. In this work a method is proposed with which we can eliminate this component effectively. This technique is based on recording two holograms for two angular positions of the CCD camera. The performed experiments verify the effectiveness of the procedure.

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Mohammad Abolhassani and Yadollah Rostami "Zero-order elimination in digital holography by use of two holograms: one is made by tilting the CCD", Proc. SPIE 8082, Optical Measurement Systems for Industrial Inspection VII, 80822H (27 May 2011); https://doi.org/10.1117/12.890197

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