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Light Transport in Tissue


Glass slide -- diffuse light incident

If diffuse light is incident on a slab bounded by glass slides then the correct boundary conditions follow from Equations (4.57) and (4.58) with the diffuse incidence incorporated as in Equations (4.52) and (4.53)

\begin{displaymath}
\varphi_d(\mathbf{r})-A_{\mathrm{top}}^{\mathrm{glass}}h{\pa...
...m{glass}}Q(\mathbf{r}) +4\pi L_{di}(\mathbf{r},\hat\mathbf{s})
\end{displaymath} (4.59)


\begin{displaymath}
\varphi_d(\mathbf{r})+A_{\mathrm{bottom}}^{\mathrm{glass}}h{...
...{glass}}Q(\mathbf{r}) +4\pi L_{di}'(\mathbf{r},\hat\mathbf{s})
\end{displaymath} (4.60)

$L_{di}(\mathbf{r},\hat\mathbf{s})$ is the isotropic diffuse radiance incident in the slab from above, $L'_{di}(\mathbf{r},\hat\mathbf{s})$ is the diffuse radiance from below. The parameters Atopglass are calculated as in Appendix B.

S. A. Prahl."Light Transport in Tissue," PhD thesis, University of Texas at Austin, 1988.