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Small-angle scattering of polarized light. I. comparison of theoretical predictions for isotropic and anisotropic spheres

Abstract : This paper describes small angle light scattering (SALS) calculations and compares the results for isotropic and anisotropic spheres. For isotropic spheres the exact Mie theory is compared with the Rayleigh-Gans-Debye (RGD) and the anomalous diffraction (AD) approximations in order to study the validity of the approximations. For anisotropic spheres the RGD is compared with the AD approximation. A study of SALS in the RGD approximation shows that the first-order intensity maximum corresponding to a lobe of the four-leaf clover pattern is not only a function of the sphere diameter but also depends on the isotropic and the anisotropic refractive index of the sphere. The practical implications of this are discussed.
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Submitted on : Friday, February 24, 2012 - 11:01:58 AM
Last modification on : Thursday, September 24, 2020 - 5:22:54 PM

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Gerald H. Meeten, Patrick Navard. Small-angle scattering of polarized light. I. comparison of theoretical predictions for isotropic and anisotropic spheres. Journal of Polymer Science Part B: Polymer Physics, Wiley, 1989, 27 (10), p. 2023-2035. ⟨10.1002/polb.1989.090271007⟩. ⟨hal-00673750⟩

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