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Zhu Y, Vaillant J, François M, et al. Co-axis digital holography based on sinusoidal phase modulation using generalized lock-in detection. Appl Opt. 2017;56(13):F97-F104doi: 10.1364/AO.56.000F97.
Zhu, Y., Vaillant, J., François, M., Montay, G., & Bruyant, A. (2017). Co-axis digital holography based on sinusoidal phase modulation using generalized lock-in detection. Applied optics, 56(13), F97-F104. https://doi.org/10.1364/AO.56.000F97
Zhu, Yunlong, et al. "Co-axis digital holography based on sinusoidal phase modulation using generalized lock-in detection." Applied optics vol. 56,13 (2017): F97-F104. doi: https://doi.org/10.1364/AO.56.000F97
Zhu Y, Vaillant J, François M, Montay G, Bruyant A. Co-axis digital holography based on sinusoidal phase modulation using generalized lock-in detection. Appl Opt. 2017 May 01;56(13):F97-F104. doi: 10.1364/AO.56.000F97. PMID: 28463302.
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Appl Opt. 2017 May 01;56(13):F97-F104. doi: 10.1364/AO.56.000F97.

Co-axis digital holography based on sinusoidal phase modulation using generalized lock-in detection.

Applied optics

Yunlong Zhu, Julien Vaillant, Manuel François, Guillaume Montay, Aurélien Bruyant

PMID: 28463302 DOI: 10.1364/AO.56.000F97

Abstract

Sinusoidal phase modulating (SPM) interferometers are used to precisely measure complex light fields with simple interferometric setups. Recently, a generalized lock-in technique has been proposed for optimizing the signal extraction in phase-modulated interferometers. This article shows its applicability in digital holography as well as digital holographic interferometry. A compact homemade setup based on the Michelson interferometer was used to observe the scattering sample surface with a spatial resolution of 32 LP/mm; out-of-plane rotation was measured with a theoretical detection limit of 0.004°. The comparison between the generalized lock-in detection and traditional SPM interferometer method was done theoretically and experimentally.

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