Open AccessCorrection of an adding-doubling inversion algorithm for the measurement of the optical parameters of turbid media
Author(s) -
Paul Lemaillet,
Catherine C. Cooksey,
Jeeseong Hwang,
Heidrun Wabnitz,
Dirk Grosenick,
Ying-Hsi Lin,
David W. Allen
Publication year - 2017
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.9.000055
Subject(s) - transmittance , integrating sphere , optics , reflectivity , broadband , inversion (geology) , wavelength , materials science , sample (material) , computer science , physics , paleontology , structural basin , thermodynamics , biology
We present broadband measurements of the optical properties of tissue-mimicking solid phantoms using a single integrating sphere to measure the hemispherical reflectance and transmittance under a direct illumination at the normal incident angle. These measurements are traceable to reflectance and transmittance scales. An inversion routine using the output of the adding-doubling algorithm restricted to the reflectance and transmittance under a direct illumination was developed to produce the optical parameters of the sample along with an uncertainty budget at each wavelength. The results for two types of phantoms are compared to measurements by time-resolved approaches. The results between our method and these independent measurements agree within the estimated measurement uncertainties.