Spatial-carrier phase-shifting digital holography utilizing spatial frequency analysis for the correction of the phase-shift error

We propose a single-shot digital holography in which the complex amplitude distribution is obtained by spatial-carrier phase-shifting (SCPS) interferometry and the correction of the inherent phase-shift error occurred in this interferometry. The 0th order diffraction wave and the conjugate image are...

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Bibliographic Details
Published in:Optics letters 2012-01, Vol.37 (2), p.148-150
Main Authors: Tahara, Tatsuki, Shimozato, Yuki, Awatsuji, Yasuhiro, Nishio, Kenzo, Ura, Shogo, Matoba, Osamu, Kubota, Toshihiro
Format: Article
Language:English
Subjects:
Conjugates
Diffraction
Digital
Error correction
Fourier transforms
Holography
Interferometry
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Summary:We propose a single-shot digital holography in which the complex amplitude distribution is obtained by spatial-carrier phase-shifting (SCPS) interferometry and the correction of the inherent phase-shift error occurred in this interferometry. The 0th order diffraction wave and the conjugate image are removed by phase-shifting interferometry and Fourier transform technique, respectively. The inherent error is corrected in the spatial frequency domain. The proposed technique does not require an iteration process to remove the unwanted images and has an advantage in the field of view in comparison to a conventional SCPS technique.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.37.000148