论文标题
一个现实的相屏幕模型，用于远期散落媒体
A realistic phase screen model for forward multiple-scattering media
论文作者
论文摘要
用于正向多散射介质的现有随机相屏幕（RPS）模型无法融合弹道光。在这封信中，我们基于一个假设，即单个屏幕应表示光子在两个相邻屏幕之间经历的所有散射事件，从而通过蒙特卡罗模拟重新设计了屏幕的角谱。三个例子表明，就弹道光，梁曲线的演变和角记忆效应而言，提出的模型比常规RPS模型具有比常规RPS模型更现实的光学特性。提出的模型还提供了通过调整屏幕间距来平衡计算精度，速度和内存使用量的灵活性。
Existing random phase screen (RPS) models for forward multiple-scattering media fail to incorporate ballistic light. In this letter, we redesign the angular spectrum of the screen by means of Monte-Carlo simulation based on an assumption that a single screen should represent all the scattering events a photon experiences between two adjacent screens. Three examples demonstrate that the proposed model exhibits more realistic optical properties than conventional RPS models in terms of attenuation of ballistic light, evolution of beam profile and angular memory effect. The proposed model also provides the flexibility to balance the computing accuracy, speed and memory usage by tuning the screen spacing.
