Abstract:In order to further study the laser scattering characteristics of ice crystals,a multi-layer core-shell ice crystal structure considering the intermediate mixed layer was established.The calculation formula of the intermediate mixed layer refractive index related to the medium parameters was given.The two kinds of special core shells of soot coal-ice crystal,soot coal-ice crystal-water are discussed the effect of structural ice crystal particle scattering characteristics,under the two wavelengths of 0.86 μm and 1.06 μm,The numerical results show that compared with the ideal core-shell ice crystals,the scattering intensity of the ice-shells in the core-shell structure of the intermediate mixed layer is small,and the scattering characteristics increase with the increase of the number of stratification of the ice-shells in the core-shell structure.The scattering intensity is proportional to the particle size,and as the particle size increases,the directionality of the ice-shell scattering of the core-shell structure increases,and the distribution of the scattered light intensity with the scattering angle is more complicated .