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Proceedings Paper

Tolerance analysis in single-shot phase-shifting digital holography based on the spatial carrier interferometry
Author(s): Yasuhiro Harada; Aizuddin Wan; Yuichi Sasaki
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Paper Abstract

Phase-shifting digital holography based on the spatial carrier interferometry makes available for snap-shot recording and reconstruction of three-dimensional objects in dynamic motion without erroneous signals. Key point of the method is an introduction of tilt in the reference plane wave in recording a hologram so that relative phase difference between sequential pixels of image sensors becomes 2π/3 or π/2. This requires theoretically rigorous alignment in the angle of incidence of the reference wave, and therefore, it seems to make the method impractical. In the present paper, the tolerance of the incident angle of the plane reference wave in the method is analyzed theoretically and verified by computer simulations. It is found from these studies that the rigorous alignment of the incident angle of the plane reference wave is very important requirement to reconstruct the correct complex amplitude of the object wave. However, it is also found that in the case of miss-alignment, we can derive the correct object waveform by compensating the linear phase due to miss-alignment.

Paper Details

Date Published: 15 February 2010
PDF: 9 pages
Proc. SPIE 7619, Practical Holography XXIV: Materials and Applications, 761908 (15 February 2010); doi: 10.1117/12.842878
Show Author Affiliations
Yasuhiro Harada, Kitami Institute of Technology (Japan)
Aizuddin Wan, Kitami Institute of Technology (Japan)
Yuichi Sasaki, Kitami Institute of Technology (Japan)


Published in SPIE Proceedings Vol. 7619:
Practical Holography XXIV: Materials and Applications
Hans I. Bjelkhagen; Raymond K. Kostuk, Editor(s)

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