Abstract

An explicit form of the Mueller matrix is given for an anisotropic sphere fulfilling the requirements of the Rayleigh-Gans-Debye (RGD) approximation. The angular dependences of single matrix elements are compared with Lorenz-Mie predictions for an isotropic sphere. Good agreement between the Lorenz-Mie model and that of RGD is observed where the latter is applicable. The magnitude and sign of the matrix elements depend on the size parameter kR (k = 2π/λ; R is the radius of the sphere) as well as on the magnitude and sign of the $(\overline{n}-1)/\Delta n$ parameter, where $\overline{n}$ is the relative refractive index and Δn is the relative anisotropy of the sphere.

© 1991 Optical Society of America

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