Tolerance analysis in single-shot phase-shifting digital holography based on the spatial carrier interferometry

Yasuhiro Harada; Aizuddin Wan; Yuichi Sasaki

doi:10.1117/12.842878

15 February 2010 Tolerance analysis in single-shot phase-shifting digital holography based on the spatial carrier interferometry

Yasuhiro Harada, Aizuddin Wan, Yuichi Sasaki

Author Affiliations +

Proceedings Volume 7619, Practical Holography XXIV: Materials and Applications; 761908 (2010) https://doi.org/10.1117/12.842878
Event: SPIE OPTO, 2010, San Francisco, California, United States

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.

Citation Download Citation

Yasuhiro Harada, Aizuddin Wan, and Yuichi Sasaki "Tolerance analysis in single-shot phase-shifting digital holography based on the spatial carrier interferometry", Proc. SPIE 7619, Practical Holography XXIV: Materials and Applications, 761908 (15 February 2010); https://doi.org/10.1117/12.842878

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