Carlsson J, Hellentin P, Malmqvist L, Persson A, Persson W, Wahlström C G
Appl Opt. 1995 Mar 20;34(9):1528-35. doi: 10.1364/AO.34.001528.
A method for time-resolved recording of light scattering in thin, highly scattering media is described. Subpicosecond pulses from a high-power Ti:sapphire laser are used, and single-shot recordings of the scattered light are made with a fast streak camera. The method is applied to the study of light scattering in paper, and a 1-ps resolution is demonstrated. The dependence of the light scattering on the basis of weight and density of the paper has been studied. A white-light continuum generated from the high-power pulses by the use of self phase modulation in water is used to study the wavelength dependence of the scattering process. A model for the propagation of light in paper has been developed and used in Monte Carlo simulations. The experimental results are used for testing this model, and absorption and scattering parameters are determined from that comparison.
描述了一种用于在薄的高散射介质中进行光散射时间分辨记录的方法。使用来自高功率钛宝石激光器的亚皮秒脉冲，并用快速条纹相机对散射光进行单次记录。该方法应用于纸张光散射的研究，并展示了1皮秒的分辨率。研究了光散射对纸张重量和密度的依赖性。利用水中的自相位调制从高功率脉冲产生的白光连续谱来研究散射过程的波长依赖性。已开发出一种光在纸张中传播的模型，并用于蒙特卡罗模拟。实验结果用于测试该模型，并通过比较确定吸收和散射参数。
