Ambiguity of optical coherence tomography measurements due to rough surface scattering.

Autor: Ashtamker Y; Department of Physics, Bar-Ilan University, Ramat Gan 52900, Israel., Freilikher V, Dainty JC
Jazyk: angličtina
Zdroj: Optics express [Opt Express] 2011 Oct 24; Vol. 19 (22), pp. 21658-64.
DOI: 10.1364/OE.19.021658
Abstrakt: 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.
(© 2011 Optical Society of America)
Databáze: MEDLINE