Skin optics
Van Gemert, M.J.C.; Jacques, S.L.; Sterenborg, H.J.C.M.; Star, W.M.
Biomedical Engineering, IEEE Transactions on
Volume 36, Issue 12, Dec 1989 Page(s):1146 - 1154
Digital Object Identifier 10.1109/10.42108
Summary:The current status of tissue optics is reviewed, distinguishing
among the cases of dominant absorption, dominant scattering, and
scattering about equal to absorption. Previously published data as well
as some current unpublished data on (human) stratum corneum, epidermis,
and dermis are collected and/or (re)analyzed in terms of absorption
coefficient, scattering coefficient, and anisotropy scattering factor.
It is found that the individual skin layers show strongly forward
scattering (anisotropy factors between 0.7 and 0.9). The absorption and
scattering data show that for all wavelengths considered, scattering is
much more important than absorption. Solutions to the transport equation
for a multilayer skin model and finite beam laser irradiation that take
this into account are not yet available. Hence, any quantitative
dosimetry for skin treated with (laser) light is inaccurate
View citation and abstract |