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Proceedings Paper

Optical tomography at the microscopic scale by means of a numerical low-coherence holographic technique
Author(s): Etienne Cuche; Patrick Poscio; Christian D. Depeursinge
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Paper Abstract

We describe here a numerical application of the optical low- coherence holographic microscopy (OLCHM) technique. A low coherent source illuminates an object and the backscattered light interfere with a reference wave which optical path's length can be precisely adjusted. Holograms are recorded by a CCD camera and numerically reconstructed. With this technique optical tomography can be performed with a single scan along the optical axis. The transverse resolution of the reconstructed images mainly depends on the optics components used and approaches the diffraction limit. Using a Ti:Sapphire laser a depth resolution of about 30 micrometers has been achieved.

Paper Details

Date Published: 11 December 1996
PDF: 6 pages
Proc. SPIE 2927, Optical and Imaging Techniques for Biomonitoring II, (11 December 1996); doi: 10.1117/12.260653
Show Author Affiliations
Etienne Cuche, Ecole Polytechnique Federale de Lausanne (Switzerland)
Patrick Poscio, Institut de Recherche en Ophtalmologie (Switzerland)
Christian D. Depeursinge, Ecole Polytechnique Federale de Lausanne (Switzerland)


Published in SPIE Proceedings Vol. 2927:
Optical and Imaging Techniques for Biomonitoring II
Hans-Jochen Foth; Renato Marchesini; Halina Podbielska, Editor(s)

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