Rainbow Particle Imaging Velocimetry

Élodie Lamothe (1) , Ivo Ihrke (1) , Xavier Granier (2, 1)

1 MANAO - Melting the frontiers between Light, Shape and Matter
2 LP2N - Laboratoire Photonique, Numérique et Nanosciences

We introduce a new approach for snapshot imaging of time-resolved, non-stationary 3D fluid flows. Based on Particle Imaging Velocimetry (PIV), a well-established technique for fluid flow analysis, we propose a novel approach for spectral encoding of the third dimension. To do so, we illuminate the flow volume with a stack of monochromatic light planes at different wavelengths (rainbow) : we call this novel approach Rainbow-PIV. With a single camera, we can record the third dimension, this is a completely new approach compared to the state-of-the-art.

Domaines: Optique / photonique

Élodie Lamothe, Ivo Ihrke, Xavier Granier. Rainbow Particle Imaging Velocimetry. Journées Imagerie Optique Non Conventionnelle, Mar 2017, Paris, France. ⟨hal-02365095⟩