Study On Optical Properties Of The Dynamic Human Skin

The diffusion reflectance spectra signal from skin can represent the informationof the blood in the dermis , so it is possible to achieve noninvasive blood glucosedetection by measuring the diffusion reflectance spectra signal from the dermis . T hevolume of skin's blood is changing at all times along with the heart pump, which is animportant fa c tor. In this paper, the blood in the human dermis is studied, Monte Carlosimulation methods are applied to study the t he diffusion reflectance spectra signalfrom skin when the volume of skin's blood is changing, and also the simulation resultsare analyzed and discussed.Firstly, the structure and the optical properties of the skin was described.Secondly, the optical properties of the dynamic human skin and multi-layered opticalmodel of skin are focusing from the following aspects:(1) the content distribution ofthe blood in the skin;(2)the basic optical parameters and the relationship between thebasic optical parameters such as the absorption and scattering coefficients in the skinlayers and the changes of blood volume ;(3)the general proportion of the changes ofblood volume in the dermis under the action of the heart pump. Finally, the MonteCarlo simulation method was used to study the diffuse reflection in the skin underdifferent volumes of skin 's blood. Through the analysis of a large number of simulateddata, I obtained the total diffuse reflectance, horizontal and vertical distribution ofphotons, and the results are explained and analyzed. This work is important for thestudy of the optical pr operties of the skin, and, to some extent, can provide atheoretical basis for non-invasive measurement of blood glucose concentration.