Real-time dual-wavelength digital holographic microscopy with a single hologram acquisition
By J. Kühn, T. Colomb, F. Montfort, F. Charriére, Y. Emery, E. Cuche, Pierre Marquet, Christian D. Depeursinge. 2007
392 citations recorded by the source corpus.
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.
Subfields: Atomic and Molecular Physics, and Optics, Media Technology
View Paper: https://www.semanticscholar.org/paper/68a407ca79691332558ac4c3d08cd5a72d665597
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In Atomic and Molecular Physics, and Optics
In Media Technology
Citations in the corpus
- Principles and techniques of digital holographic microscopy (2010, methodology): “3) allows nanometric-precision phase imaging over a range of many micrometers without many problems associated with common software-based unwrapping methods [23,52].”