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Appl. Sci. 2017, 7(10), 1084; doi:10.3390/app7101084

Fast Method of Recovering Reference-Wave Intensity in Two-Step-Only Quadrature Phase-Shifting Holography

1
Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200072, China
2
Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA 24061, USA
*
Author to whom correspondence should be addressed.
Received: 10 August 2017 / Revised: 12 October 2017 / Accepted: 17 October 2017 / Published: 19 October 2017
(This article belongs to the Special Issue Holography and 3D Imaging: Tomorrows Ultimate Experience)
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Abstract

We present a simple yet effective method, without the need for any additional recording of intensity maps or tremendous iterative computations, to recover reference-wave intensity resulting from the complex hologram acquired by quadrature phase-shifting holography. This is achieved by utilizing a certain area of interest in the complex hologram. We select a particular area in the complex hologram where there is negligible diffraction from the test sample to estimate the reference-wave intensity. The calculated intensity value allows us to extract exact phase distribution of the object in the context of two-step-only quadrature phase-shifting holography (TSO-PSH) without the zeroth-order beam and the twin image noise on the reconstruction plane. Computer simulation and experimental results have been performed to verify the effectiveness and feasibility of our proposed method. View Full-Text
Keywords: phase-shifting holography; complex hologram; zeroth order noise; phase retrieval phase-shifting holography; complex hologram; zeroth order noise; phase retrieval
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Zhou, W.-J.; Zheng, C.; Poon, T.-C. Fast Method of Recovering Reference-Wave Intensity in Two-Step-Only Quadrature Phase-Shifting Holography. Appl. Sci. 2017, 7, 1084.

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