This article is cited in 6 papers

Laser biophotonics

A Monte Carlo based lookup table for spectrum analysis of turbid media in the reflectance probe regime

Xiang Wen^ab, Xiewei Zhong^ab, Tingting Yu^ab, Dan Zhu<sup>ab

a</sup> Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
^b Key Laboratory of Biomedical Photonics of Ministry of Education, Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, China

Abstract: Fibre-optic diffuse reflectance spectroscopy offers a method for characterising phantoms of biotissue with specified optical properties. For a commercial reflectance probe (six source fibres surrounding a central collection fibre with an inter-fibre spacing of 480 μm; R400-7, Ocean Optics, USA) we have constructed a Monte Carlo based lookup table to create a function called getR(μ_a, μ'_s), where μ_a is the absorption coefficient and μ'_s is the reduced scattering coefficient. Experimental measurements of reflectance from homogeneous calibrated phantoms with given optical properties are compared with the predicted reflectance from the lookup table. The deviation between experiment and prediction is on average 12.1%.

Keywords: optical fibres, diffuse reflectance, optical spectra, turbid media, Monte Carlo simulation.

PACS: 87.64.Cc, 87.85.Lf, 02.70.Uu

Received: 19.02.2014
Revised: 20.03.2014

 English version: Quantum Electronics, 2014, 44:7, 641–645

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