Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 4, 2009
|
|
---|---|---|
Article Number | 09038 | |
Number of page(s) | 7 | |
DOI | https://doi.org/10.2971/jeos.2009.09038 | |
Published online | 28 July 2009 |
Regular papers
Determination of 3D-region of interest using digital in-line holography with astigmatic Gaussian beams
Groupe d’Optique et d’Optoélectronique, UMR-6614 CORIA, Av. de l’Université, 76801 Saint-Etienne du Rouvray cedex, France
* verrier@coria.fr
** coetmellec@coria.fr
Received:
19
June
2009
An experimental method to visualize a 3D-region of interest (ROI) by means of an astigmatic Gaussian beam is proposed. This method allows to reduce the amount of image planes to be reconstructed thus saving computational time. ROI determination is performed without any computational step: particles that are located in the ROI can be distinguished from the others according to the hyperbolic shape of their diffraction pattern. Theoretical location of the ROI is determined by using the ABCD approach proposed in a previous paper [1]. Experimental results are presented.
Key words: digital holography / astigmatic Gaussian beams / region of interest
© The Author(s) 2009. All rights reserved.
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