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Optical Engineering

Digital holographic movie by using a point diffraction interferometer
Author(s): Claudio Lemmi; Claudio N. Ramírez; Juan Campos
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Paper Abstract

A method to obtain a digital holographic movie by means of a point diffraction interferometer is described. By using a parallel aligned liquid crystal wave plate of size 3×3  cm2, a phase shifting interferometric technique is implemented. The optical setup is able to operate at 10  frames/s. Each frame can be digitally refocused to reconstruct different planes of the three-dimensional (3-D) object. By changing the frame, the object can be refocused in a different time. As an example, we show a movie which contains two objects that are separated by 160 mm. The movie shows how, for a given time (a fixed hologram frame), we can focus at different planes (separated 0.1 mm) of the 3-D object, and by changing the frame the movement of the object can be observed.

Paper Details

Date Published: 21 April 2015
PDF: 5 pages
Opt. Eng. 54(4) 044104 doi: 10.1117/1.OE.54.4.044104
Published in: Optical Engineering Volume 54, Issue 4
Show Author Affiliations
Claudio Lemmi, Univ. de Buenos Aires (Argentina)
Claudio N. Ramírez, Univ. Autónoma de Barcelona (Spain)
Juan Campos, Univ. Autònoma de Barcelona (Spain)

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