摘要
基于矢量光线追踪(VRT)模型,研究了均匀椭球形液滴三阶和四阶彩虹区域的光学焦散结构,详细探究了光学焦散结构的演化过程,得到了三阶彩虹条纹的模拟结果、条纹曲率以及三阶彩虹和双曲脐条纹尖点焦散位置与椭球度的关系。
Based on the vector-ray tracing（VRT）model,the optical caustic structures of homogeneous ellipsoid droplets in the third-order and fourth-order rainbow regions are studied.The evolution process of the optical caustic structure is investigated in detail.The simulated result and fringe curvature of the third-order rainbow fringe as well as the relationship between the cusp location of the third-order rainbow and hyperbolic umbilic fringes and the aspect ratio are obtained.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2017年第3期359-366,共8页
Acta Optica Sinica
基金
国家自然科学基金(51506129)
关键词
散射
光散射
散射颗粒
彩虹
scattering
light scattering
scattering particle
rainbow
