Study of coherent reflectometer for imaging internal structures of highly scattering media

Mathieu Poupardin; Agnes Dolfi

doi:10.1117/12.229989

15 January 1996 Study of coherent reflectometer for imaging internal structures of highly scattering media

Mathieu Poupardin, Agnes Dolfi

Proceedings Volume 2628, Optical and Imaging Techniques for Biomonitoring; (1996) https://doi.org/10.1117/12.229989
Event: BiOS Europe '95, 1995, Barcelona, Spain

Abstract

Optical reflectometers are potentially useful tools for imaging internal structures of turbid media, particularly of biological media. To get a point by point image, an active imaging system has to distinguish light scattered from a sample volume and light scattered by other locations in the media. Operating this discrimination of light with reflectometers based on coherence can be realized in two ways: assuring a geometric selection or a temporal selection. In this paper we present both methods, showing in each case the influence of the different parameters on the size of the sample volume under the assumption of single scattering. We also study the influence on the detection efficiency of the coherence loss of the incident light resulting from multiple scattering. We adapt a model, first developed for atmospheric lidar in turbulent atmosphere, to get an analytical expression of this detection efficiency in the function of the optical coefficients of the media.

Citation Download Citation

Mathieu Poupardin and Agnes Dolfi "Study of coherent reflectometer for imaging internal structures of highly scattering media", Proc. SPIE 2628, Optical and Imaging Techniques for Biomonitoring, (15 January 1996); https://doi.org/10.1117/12.229989

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