Abstract

High turbidity and its associated multiple scattering phenomena can often lead to an underestimation of the particle size for the laser scattering method. To investigate the light scattering characteristics and evaluate the effect of high-obscuration particle systems, a Monte Carlo model has been developed based on Mie’s theory. A compact setup was utilized to perform a series of experiments on three certified reference materials (CRMs) at different concentrations. Both the scattered light energy distribution and the obscuration were measured simultaneously. The inversion results of the particle size indicate a continuous increase in deviation from the nominal value as the obscuration rises. According to the conventional single scattering model, the inversion errors fall within 5% for obscuration levels ranging from 0.15 to 0.2. However, for a higher obscuration, the error can reach approximately 15%. Thus, a correction method has been proposed by introducing an improved model matrix that includes the multiple scattering contribution for the data inversion, which exhibits a significant enhancement in the accuracy of particle size measurements under high obscuration conditions. For all three types of particles being studied, the error was successfully reduced to within 5.0%.

© 2024 Optica Publishing Group

Quantifying changes in oxygen saturation of the internal jugular vein in vivo using deep neural networks and subject-specific three-dimensional Monte Carlo models

Chin-Hsuan Sun, Hao-Wei Lee, Ya-Hua Tsai, Jia-Rong Luo, and Kung-Bin Sung
Opt. Lett. 49(10) 2669-2672 (2024)

Efficient single-scattering lookup table for lidar and polarimeter phytoplankton studies

Eduard Chemyakin, Snorre Stamnes, James Allen, Sharon P. Burton, Johnathan Hair, Chris Hostetler, Jacek Chowdhary, Bastiaan van Diedenhoven, and Brian Cairns
Opt. Lett. 49(9) 2453-2456 (2024)

Effects of the Earth curvature on Mie-scattering radiances at high solar-sensor geometries based on Monte Carlo simulations

Fei Xu, Xianqiang He, Palanisamy Shanmugam, Yan Bai, Xuchen Jin, Wencai Cai, Difeng Wang, Fang Gong, and Qiankun Zhu
Opt. Express 32(4) 6706-6732 (2024)

Modeling of ultraviolet omni-directional multiple scattering channel based on Monte Carlo method

Tao Shan, Jianshe Ma, Tianfeng Wu, Zanqiu Shen, and Ping Su
Opt. Lett. 45(20) 5724-5727 (2020)

In situ surface turbidity sensor based on localized light scattering from tilted fiber Bragg gratings

Xile Han, Weiru Liu, Lijiao Zu, Wen Wu, Jiwei Xie, Daotong You, Minghui Du, and Tuan Guo
Opt. Lett. 49(3) 650-653 (2024)