Real-time dual-wavelength digital holographic microscopy with a single hologram acquisition

Jonas Kuhn; Tristan Colomb; Frédéric Montfort; Florian Charrière; Yves Emery; Etienne Cuche; Pierre Marquet; Christian Depeursinge

doi:10.1364/OE.15.007231

Real-time dual-wavelength digital holographic microscopy with a single hologram acquisition

Jonas Kuhn^*, Tristan Colomb, Frédéric Montfort, Florian Charrière, Yves Emery, Etienne Cuche, Pierre Marquet, Christian Depeursinge

^*Corresponding author for this work

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

412 Scopus citations

Abstract

A technique to perform two-wavelengths digital holographic microscopy (DHM) measurements with a single hologram acquisition is presented. The vertical measurement range without phase ambiguity is extended to the micron-range, thanks to the resulting synthetic wavelength defined by the beating of two wavelengths with a separation of about 80nm. Real-time dual-wavelength imaging is made possible by using two reference waves having different wavelengths and propagation directions for the hologram recording. The principle of the method is exposed and experimental results concerning a 1.2μm m high test sample as well as a moving micro-mirror are presented. To the extent of our knowledge, this is the first time that real-time synthetic beat-wavelength digital holography measurements are reported.

Original language	English (US)
Pages (from-to)	7231-7242
Number of pages	12
Journal	Optics Express
Volume	15
Issue number	12
DOIs	https://doi.org/10.1364/OE.15.007231
State	Published - Jun 11 2007
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "A technique to perform two-wavelengths digital holographic microscopy (DHM) measurements with a single hologram acquisition is presented. The vertical measurement range without phase ambiguity is extended to the micron-range, thanks to the resulting synthetic wavelength defined by the beating of two wavelengths with a separation of about 80nm. Real-time dual-wavelength imaging is made possible by using two reference waves having different wavelengths and propagation directions for the hologram recording. The principle of the method is exposed and experimental results concerning a 1.2μm m high test sample as well as a moving micro-mirror are presented. To the extent of our knowledge, this is the first time that real-time synthetic beat-wavelength digital holography measurements are reported.",

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AU - Kuhn, Jonas

AU - Colomb, Tristan

AU - Montfort, Frédéric

AU - Charrière, Florian

AU - Emery, Yves

AU - Cuche, Etienne

AU - Marquet, Pierre

AU - Depeursinge, Christian

PY - 2007/6/11

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AB - A technique to perform two-wavelengths digital holographic microscopy (DHM) measurements with a single hologram acquisition is presented. The vertical measurement range without phase ambiguity is extended to the micron-range, thanks to the resulting synthetic wavelength defined by the beating of two wavelengths with a separation of about 80nm. Real-time dual-wavelength imaging is made possible by using two reference waves having different wavelengths and propagation directions for the hologram recording. The principle of the method is exposed and experimental results concerning a 1.2μm m high test sample as well as a moving micro-mirror are presented. To the extent of our knowledge, this is the first time that real-time synthetic beat-wavelength digital holography measurements are reported.

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Real-time dual-wavelength digital holographic microscopy with a single hologram acquisition

Abstract

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