Generalized phase-shifting digital holography for single-exposure

Takanori Nomura; Masatoshi Imbe

doi:10.1117/12.2194758

29 July 2015 Generalized phase-shifting digital holography for single-exposure

Takanori Nomura, Masatoshi Imbe

Proceedings Volume 9659, International Conference on Photonics Solutions 2015; 965906 (2015) https://doi.org/10.1117/12.2194758
Event: International Conference on Photonics Solutions 2015, 2015, Hua Hin, Thailand

Abstract

Single exposure phase-shifting digital holography is mandatory for recording/analyzing dynamic phenomena. As one of the candidate for the single exposure phase-shifting digital holography is the wave-splitting phase-shifting digital holography. We have proposed generalized phase-shifting digital holography as one of the wave-splitting phase-shifting digital holography. In the digital holography, the phase-shift quantity, which corresponds to the difference between the phase quantities of the reference wave on the adjacent pixels is generalized different from ordinal wave-splitting methods. Owing to the generalized phase-shifting, we can use a random-phase wave as the reference wave. The proposed phase-shifting digital holography enables us to record a fully-complex field of a dynamic phenomena without dc and conjugate terms using a commercially available optical devices. The relation between the property of the reference wave and the quality of the reconstructed images are discussed. Experimental results are given to confirm the proposed phase-shifting digital holography.

Citation Download Citation

Takanori Nomura and Masatoshi Imbe "Generalized phase-shifting digital holography for single-exposure", Proc. SPIE 9659, International Conference on Photonics Solutions 2015, 965906 (29 July 2015); https://doi.org/10.1117/12.2194758

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KEYWORDS

Phase shifts

Digital holography

Holograms

Speckle

Image sensors

3D image reconstruction

Adaptive optics

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