| Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 10, 2015
|
|
|---|---|---|
| Article Number | 15009 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.2971/jeos.2015.15009 | |
| Published online | 21 February 2015 | |
Regular paper
Dual wavelength digital holography for 3D particle image velocimetry
Département optique-lasers, UMR-6614 CORIA, LABEX EMC3, Av. de l’Université, , 76801 Saint-Etienne du Rouvray cedex, France
Received:
3
November
2014
Revised:
17
December
2014
A multi-exposure digital in-line hologram of a moving particle field is recorded by two different wavelengths and at different times. As a result, during the reconstruction step, each hologram can be independently and accurately reconstructed for each wavelength. This procedure enables avoiding the superimposition of particles images that may be close to each other in multi-exposure holography. The feasibility is demonstrated by using a standard particle sizing reticle and shows the potential of this method for particle velocity measurement.
Key words: Holography / image reconstruction techniques / three dimensional particle image velocimetry
© The Author(s) 2015. All rights reserved.
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