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Applicable range of the Rayleigh-Debye-Gans theory for calculating the scattering matrix of soot aggregates

机译:Rayleigh-Debye-Gans理论在计算烟灰聚集体散射矩阵中的适用范围

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摘要

The Rayleigh-Debye-Gans theory, though being an approximation, plays an important role in the study of light scattering by aggregates. Therefore, considerable research efforts have been invested in examining its applicable range. Past examinations were predominately performed in terms of the integrative properties (e.g., the scattering and absorption cross sections), with little work done in terms of the angular scattering properties (e.g., the Mueller scattering matrix). However, in practice, many techniques directly measure these angular properties, calling for a close examination of the theory's accuracy in predicting the angular properties. We describe such an investigation, conducted under the context of soot aggregates. The results are expected to provide useful insights into the optimal design of experiments and instruments that use light scattering for particle characterization.
机译:尽管是近似值,但瑞利-德比-甘斯理论在研究聚集体的光散射中起着重要作用。因此,在检查其适用范围方面已经投入了大量的研究工作。过去的检查主要是在积分特性(例如,散射和吸收截面)方面进行的,而在角散射特性(例如,Mueller散射矩阵)方面所做的工作很少。然而,在实践中,许多技术直接测量这些角度特性,要求仔细研究该理论在预测角度特性方面的准确性。我们描述了一种在烟灰聚集体背景下进行的调查。预期结果将为使用光散射进行颗粒表征的实验和仪器的最佳设计提供有用的见识。

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  • 来源
    《Applied optics》 |2009年第3期|共7页
  • 作者

    Yan Zhao; Lin Ma;

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  • 正文语种 eng
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