论文标题
通过高度散射介质的三阶非线性飞秒光学门控
Third-order nonlinear femtosecond optical gating through highly scattering media
论文作者
论文摘要
区分通过高度散射培养基传播的光的弹道和弥漫性成分不仅对成像目的而言很重要，而且对于研究了介质本身的基本扩散特性。在过去的20年中，非线性时间门控仍然仅限于约10E-10传输因子。在这里，我们报告了高度分散的飞秒脉冲的非线性时间门控测量，其传输因子低至10E-12。我们的方法是基于飞秒脉冲的三阶非线性互相关，这是一种用于高功率激光科学的标准诊断，首次应用于研究基本光散射特性的研究。
Discriminating between ballistic and diffuse components of light propagating through highly scattering media is not only important for imaging purposes but also for investigating the fundamental diffusion properties of the medium itself. Massively developed to this end over the past 20 years, nonlinear temporal gating remains limited to about 10e-10 transmission factors. Here, we report nonlinear time gated measurements of highly scattered femtosecond pulses with transmission factors as low as 10e-12. Our approach is based on third-order nonlinear cross-correlation of femtosecond pulses, a standard diagnostic used in high-power laser science, applied for the first time to the study of fundamental light scattering properties.
