Laven Philip
Appl Opt. 2011 Oct 1;50(28):F29-38. doi: 10.1364/AO.50.000F29.
Rainbows, coronas and glories are caused by the scattering of sunlight from water droplets in the atmosphere. Although these optical phenomena are seen fairly frequently, even scientifically minded people sometimes struggle to provide explanations for their formation. This paper offers explanations of these phenomena based on numerical computations of the scattering of a 5 fs pulse of red light by a spherical droplet of water. The results reveal the intricate details of the various scattering mechanisms, some of which are essentially undetectable except in the time domain.
彩虹、日晕和华是由大气中水滴对太阳光的散射引起的。尽管这些光学现象相当常见，但即使是有科学头脑的人有时也难以解释它们的形成。本文基于对5飞秒红光脉冲被球形水滴散射的数值计算，对这些现象进行了解释。结果揭示了各种散射机制的复杂细节，其中一些机制除了在时域中基本无法检测到。
