Optical deflection tomography with the phase-shifting Schlieren

Beghuin, Didier;Dewandel, Jean-Luc;Joannes, Luc;Foumouo, Emmanuel;Antoine, Philippe
(2010) Optics Letters — Vol. 35, n° 22, p. 3745-3747 (November (November (2010)

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  • Beghuin, DidierLambda-X
    Author
  • Dewandel, Jean-LucLambda-X
    Author
  • Joannes, LucLambda-X
    Author
  • Foumouo, EmmanuelUCLouvain
    Author
  • Antoine, PhilippeUCLouvain
    Author
Abstract
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 35μm resolution with a 3mm depth of field. Its performance is illustrated with a bundle of fibers immersed in a matching index solution.
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Beghuin, D., Dewandel, J.-L., Joannes, L., Foumouo, E., & Antoine, P. (2010). Optical deflection tomography with the phase-shifting Schlieren. Optics Letters, 35(22), 3745-3747 (November (November. https://doi.org/10.1364/OL.35.003745 (Original work published 2010)