动态光散射中光子相关谱测量系统的空间相干性问题

On the Spatial Coherence Problem of a Photon Correlation Spectrum Measurement System in Dynamic Light Scattering

利用光干涉的简化模型讨论了动态光散射中光子相关谱测量系统的空间相干性要求的物理本质。利用相干面积概念对光子相关谱测量系统空间相干性判据的几种常见表述进行了规范。提出一种具有普遍意义的简明判据。

Using a simplified model of light interference, we discussed the physical essence of the spatial coherence demand on a photon correlation spectrum measurement system in dynamic light scattering. By using the concept of ”coherence area”, we standardized three familiar statements about the spatial coherence criterion on a photon correlation spectrum measurement system. In the end, we brought forward a general and compendious criterion.