摘要
了解偏振光在浑浊介质中运动传输时光学特性的变化规律是对浑浊介质中目标进行偏振成像研究的基础。为此,首先测量了实验所用偏振光的偏振度,并计算了其与理想偏振光偏振度之间的误差,随后利用马尔文粒度仪测量了脂肪乳颗粒的粒径大小及分布情况,在此基础上分析了光子与脂肪乳颗粒的散射类型,最后分别研究了线偏振光和圆偏振光通过不同浓度浑浊介质后产生的前向散射光和后向散射光的退偏情况。结果显示,在相同浓度脂肪乳溶液中产生的前向散射光偏振度比后向散射光偏振度高;前向散射光和后向散射光的偏振度均随脂肪乳溶液浓度的增加不断下降最后趋于稳定。
Understanding the variation of optical properties of polarized light during motion transmission in turbid media is the basis for polarized imaging research on targets in turbid media.In this paper,the degree of polarization of the polarized light used in the experiment was measured first,and the error between the polarization of the polarized light and the ideal polarized light was calculated.Then the particle size and distribution of the fat emulsion particles were measured by the Malvern particle size analyzer.The scattering types of photon and fat emulsion particles were analyzed.Finally,the depolarization of forward scattered light and backscattered light produced by linearly polarized light and circularly polarized light after passing through different concentrations of turbid medium were studied.The results show that the polarization degree of forward scattered light generated in the same concentration of fat emulsion solution is higher than that of backscattered light,and the degree of polarization of both forward scattered light and the backscattered light decreases continuously with the increase of the concentration of fat emulsion solution,and finally stabilizes.
作者
王燕妮
校曼
Wang Yanni;Xiao Man(School of Information and Control Engineering,Xi'an University of Architecture and Technology,Xi'an,Shaanxi 710055,China Abstract)
出处
《激光与光电子学进展》
CSCD
北大核心
2020年第14期300-307,共8页
Laser & Optoelectronics Progress
基金
陕西省自然科学基金基础研究项目(2020jM-499)。
关键词
成像系统
偏振光
浑浊介质
传输特性
imaging systems
polarized light
turbid medium
transmission characteristics
