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4 Mathematical Models of the Interaction of Laser Radiation with Turbid Media
Fig. 4.1 The Scheme for the
construction of models that
describe the interaction laser
light with objects
Distribution
V
Fig. 4.2 Skin model. 1 the
cornual layer, 2 epidermis, 3
the upper derma, 4 derma
with a superficial plexus of
vessels, 5 the lower derma, 6
derma with a deep plexus of
vessels, 7 hypoderm
1
2
3
4
5
6
7
and a hypoderm (see Fig. 4.2). Each of layer has the optical characteristics. However
such detailed separation of a skin into layers is used only for optical calculation.
Some authors identify the blood as a separate layer with the characteristics of
pure blood, or as an object within the tissue. A single blood vessel is sometimes
rectangular [3], or more cylindrical forms are usually placed in the dermis. The
example of a model of the skin to the blood vessels of cylindrical form is shown in
Fig. 4.3 [4].
In most cases the vessel wall has the same properties as a surrounding tissue.
Models with vessels are located in the dermis, usually used to obtain the distribution