Method for Calculating the Optical Properties of Composites Based on a Transparent Matrix with Residual Porosity and Metal Nanoparticles

被引:0
作者
A. A. Zvekov
M. V. Anan’eva
A. V. Kalenskii
B. P. Aduev
E. V. Galkina
机构
[1] Federal Research Center for Coal and Coal Chemistry,
[2] Siberian Branch of the Russian Academy of Sciences,undefined
[3] Institute of Coal Chemistry and Material Sciences,undefined
[4] Kemerovo State University,undefined
来源
Journal of Applied Spectroscopy | 2019年 / 86卷
关键词
spectroscopy; core–shell nanoparticles; optical properties; light scattering;
D O I
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中图分类号
学科分类号
摘要
A method is proposed for calculating the optical characteristics of composites based on a transparent matrix with residual porosity and metal nanoparticles by solving the transport equation for monochromatic radiation employing a spherical harmonic method and Fresnel boundary conditions. The method is tested by modeling the transport of monochromatic radiation at four wavelengths of practical importance in cyclotrimethylenetrinitramine–aluminum nanoparticle composites with a Rayleigh distribution of pores with respect to radius. It is shown that in the case of small-radius pores the reflectivity increases as the mass fraction of nanoparticles is increased. In the case of pores with large radii, a kink corresponding to complete filling of the pores appears on the dependence of the transmission on the nanoparticle mass fraction. The application of these results to inverse problems in the spectroscopy of lightscattering system is discussed.
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页码:470 / 478
页数:8
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