11 December 1996 Optical tomography at the microscopic scale by means of a numerical low-coherence holographic technique
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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.
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Etienne Cuche, Etienne Cuche, Patrick Poscio, Patrick Poscio, Christian D. Depeursinge, Christian D. Depeursinge, } "Optical tomography at the microscopic scale by means of a numerical low-coherence holographic technique", Proc. SPIE 2927, Optical and Imaging Techniques for Biomonitoring II, (11 December 1996); doi: 10.1117/12.260653; https://doi.org/10.1117/12.260653
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