Particle shape as revealed by spectral depolarization
Particle shape as revealed by spectral depolarization
复制标题
DOI：
10.1364/ao.46.006185
复制
发表时间：
2007-08-20
期刊：
影响因子：
1.9
通讯作者：
Thomas, Michael E.
中科院分区：
文献类型：
--
作者：
Duncan, Donald D.;Thomas, Michael E.
通过一系列的数值模拟，我们探索了非球形粒子的一些散射效应。具体地说，我们研究了随机取向的长球形粒子的纵横比与由此产生的前向和后向散射方向上的散射光的线性去偏振之间的联系。其特殊目标是检测具有系统大小和纵横比的随机定向粒子的存在。计算表明，线性退偏振的光谱行为揭示了散射粒子的纵横比。这一概念是用球形芽孢杆菌(BG)芽胞的大小、形状和折射率来论证的。(C)2007年美国光学学会
Through a series of numerical simulations we explore some scatter effects due to nonspherical particles. Specifically, we examine the link between the aspect ratio of randomly oriented, prolate spheroidal particles and the resulting linear depolarization of the scattered light in the forward and backscatter directions. The particular objective is to detect the presence of randomly oriented particles that have a systematic size and aspect ratio. Calculations show that the spectral behavior of the linear depolarization reveals the aspect ratio of the scattering particles. The concept is demonstrated using the size, shape, and refractive index of the spore form of Bacillus globigii (BG). (c) 2007 Optical Society of America