EFFECTS OF SPECTRAL DEPENDENCE IN PASS-THROUGH PHOTON-BASED BIOMEDICAL TRANSILLUMINATION  

作　　者：PAULINO VACAS-JACQUES MARIJA STROJNIK GONZALO PAEZ 

机构地区：[1]Centro de Investigaciones en Optica,Apartado Postal 1-94837000,Leon,Guanajuato,Mexico

出　　处：《Journal of Innovative Optical Health Sciences》2009年第3期235-244,共10页创新光学健康科学杂志（英文）

基　　金：Paulino Vacas-Jacques gratefully acknowledges the National Science and Technology Council of Mexico(CONACyT)for the financial support assigned to participate at Saratov State University,grant 172068.The same author thanks the“Centro de Investigaciones en Optica”for partial funding of travel expenses;This research was performed in the framework of the project“Applications of infrared interferometry for biomedical tomography”(CONACyT 2007-I0003-60450).

摘　　要：We have proposed an interferometric setup for biomedical analysis in transillumination modality.Wavelength dependence of optical properties must be considered for selecting source and sample.An expansion of the sample optical properties,around the central wavelength of emission,serves to account for spectral effects.Expected spectral values depend on the central moments of the source,and specific constants associated to the optical properties of the sample.By matching wavelength characteristics of source and sample,a first-order approximation is applicable.In such case,the expected values are exactly the optical properties evaluated at the central wavelength.Furthermore,in the first-order approximation,the transillumination interferometer yields the integrated attenuation of the sample at the central wavelength of emission.We verify the latter assertion by performing a wavelength-dependent Monte Carlo analysis to calculate the response of the transillumination interferometer.Recovered attenuation coefficients,for imaging and characterization scenarios,are in agreement with the value computed at the central wavelength of the source.

关 键 词：TRANSILLUMINATION wavelength-dependent Monte Carlo tissue characterization tissue imaging. 

分 类 号：TN2[电子电信—物理电子学]