Accelerated autofocusing of off-axis holograms using critical sampling

M. Fatih Toy; Jonas Kühn; Stéphane Richard; Jérôme Parent; Marcel Egli; Christian Depeursinge

doi:10.1364/OL.37.005094

Accelerated autofocusing of off-axis holograms using critical sampling

M. Fatih Toy^*, Jonas Kühn, Stéphane Richard, Jérôme Parent, Marcel Egli, Christian Depeursinge

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

In this Letter we propose a fast off-axis hologram autofocusing (AF) approach that is based on the redundant data elimination by the critical resampling of the contained complex field. Implementation of the proposed methodology enables the real-time AF with up to 12× speed-up factors in comparison to the classical approach. The method is further extended for single-shot physical autofocus of the fluorescence imaging channel of multimodal imaging instruments capable of off-axis hologram acquisition.

Original language	English (US)
Pages (from-to)	5094-5096
Number of pages	3
Journal	OPTICS LETTERS
Volume	37
Issue number	24
DOIs	https://doi.org/10.1364/OL.37.005094
State	Published - Dec 15 2012
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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AU - Fatih Toy, M.

AU - Kühn, Jonas

AU - Richard, Stéphane

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AU - Egli, Marcel

AU - Depeursinge, Christian

PY - 2012/12/15

Y1 - 2012/12/15

N2 - In this Letter we propose a fast off-axis hologram autofocusing (AF) approach that is based on the redundant data elimination by the critical resampling of the contained complex field. Implementation of the proposed methodology enables the real-time AF with up to 12× speed-up factors in comparison to the classical approach. The method is further extended for single-shot physical autofocus of the fluorescence imaging channel of multimodal imaging instruments capable of off-axis hologram acquisition.

AB - In this Letter we propose a fast off-axis hologram autofocusing (AF) approach that is based on the redundant data elimination by the critical resampling of the contained complex field. Implementation of the proposed methodology enables the real-time AF with up to 12× speed-up factors in comparison to the classical approach. The method is further extended for single-shot physical autofocus of the fluorescence imaging channel of multimodal imaging instruments capable of off-axis hologram acquisition.

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Accelerated autofocusing of off-axis holograms using critical sampling

Abstract

ASJC Scopus subject areas

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