Tanifuji Tadatoshi, Nishio Naoya, Okimatsu Kazuya, Tabata Shougo, Hashimoto Yasunari
Department of Electrical and Electronics Engineering, Kitami Institute of Technology, Kitami-City, Hokkaido, Japan.
Appl Opt. 2012 Feb 1;51(4):429-38. doi: 10.1364/AO.51.000429.
Finite-difference time-domain (FDTD) analysis has been used to predict the time-resolved reflectance from multilayered slabs with a nonscattering layer. Light propagation across the nonscattering layer was calculated based on the light intensity characteristics along a ray in free space. Additional equivalent source functions due to light from scattering regions across the nonscattering region were introduced into the diffusion equation and an additional set of the diffusion equation was solved by FDTD analysis by employing new boundary conditions. The formulation was used to calculate time-resolved reflectances of three- and four-layered slabs containing a nonscattering layer. The received light intensity and the mean time of flight estimated from the time-resolved reflectance are in reasonable agreement with previously reported experimental data and Monte Carlo simulations.
时域有限差分（FDTD）分析已被用于预测具有非散射层的多层平板的时间分辨反射率。基于自由空间中光线的光强特性，计算了光在非散射层中的传播。将来自非散射区域散射区域的光产生的附加等效源函数引入扩散方程，并通过采用新的边界条件，用时域有限差分分析求解了一组附加的扩散方程。该公式用于计算包含非散射层的三层和四层平板的时间分辨反射率。从时间分辨反射率估计的接收光强和平均飞行时间与先前报道的实验数据和蒙特卡罗模拟结果合理吻合。
