Optical deflection tomography with the phase-shifting schlieren

We present a new optical deflection tomography method that takes advantage of the phase-shifting schlieren. The reconstruction algorithm is based on filtered backprojection. The instrument is well adapted for three-dimensional imaging of spatially sparse objects exhibiting large refractive index var...

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Veröffentlicht in:Optics letters 2010-11, Vol.35 (22), p.3745-3747
Hauptverfasser: BEGHUIN, Didier, DEWANDEL, Jean-Luc, JOANNES, Luc, FOUMOUO, Emmanuel, ANTOINE, Philippe
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Sprache:eng
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Zusammenfassung:We present a new optical deflection tomography method that takes advantage of the phase-shifting schlieren. The reconstruction algorithm is based on filtered backprojection. The instrument is well adapted for three-dimensional imaging of spatially sparse objects exhibiting large refractive index variations. It achieves a 35 μm resolution with a 3 mm depth of field. Its performance is illustrated with a bundle of fibers immersed in a matching index solution.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.35.003745