Fig. 3.

(a) $P_{\mathrm{V}\cap \mathrm{D}}(z)$ generated for media with optical properties ${\mu }_{\mathrm{s}}^{\prime }/{\mu }_{\mathrm{a}}=100$, $l^{*}=1\mathrm{mm}$ using $f_x=0,0.025,0.05,0.075,0.1,0.125,0.15,0.175,0.2,0.250,0.3,0.5{\mathrm{mm}}^{-1}$ with $1-\sigma$ error bars. Data were obtained at a $\mathrm{\Delta }z=0.01\mathrm{mm}$. Data symbols are shown on this plot at $z$-intervals of 1 mm. (b) $P_{z_{\max }}(z)$ derived from $P_{\mathrm{V}\cap \mathrm{D}}(z)$ distributions shown in (a).