Ambiguity of optical coherence tomography measurements due to rough surface scattering

Optical coherence tomography (OCT) images are frequently interpreted in terms of layers (for example, of tissue) with the boundary defined by a change in refractive index. Real boundaries are rough compared with the wavelength of light, and in this paper we show that this roughness has to be taken i...

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Bibliographic Details
Published inOptics express Vol. 19; no. 22; pp. 21658 - 21664
Main Authors Ashtamker, Y, Freilikher, V, Dainty, J C
Format Journal Article
LanguageEnglish
Published United States 24.10.2011
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Summary:Optical coherence tomography (OCT) images are frequently interpreted in terms of layers (for example, of tissue) with the boundary defined by a change in refractive index. Real boundaries are rough compared with the wavelength of light, and in this paper we show that this roughness has to be taken into account in interpreting the images. We give an example of the same OCT image obtained from two quite different objects, one smooth compared to the optical wavelength, and the other rough.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.19.021658