Generalized in-line digital holographic technique based on intensity measurements at two different planes

In-line digital holography based on two-intensity measurements [Zhang Opt. Lett. 29, 1787 (2004)], is modified by introducing a pi shifting in the reference phase. Such an improvement avoids the assumption that the object beam must be much weaker than the reference beam in strength and results in a...

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Bibliographic Details
Published in:Applied optics (2004) 2008-02, Vol.47 (5), p.711-717
Main Authors: Situ, Guohai, Ryle, James P, Gopinathan, Unnikrishnan, Sheridan, John T
Format: Article
Language:English
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Summary:In-line digital holography based on two-intensity measurements [Zhang Opt. Lett. 29, 1787 (2004)], is modified by introducing a pi shifting in the reference phase. Such an improvement avoids the assumption that the object beam must be much weaker than the reference beam in strength and results in a simplified experimental implementation. Computer simulations and optical experiments are carried out to validate the method, which we refer to as position-phase-shifting digital holography.
ISSN:1559-128X
DOI:10.1364/ao.47.000711