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Relative error between the exact computation of Qabs and its approximation in the small particle limit for radii, as a function of the real εr and imaginary part εi of the material permittivity for particle radii: (a) r1/λ = 0.089 and e/λ = 0.003, (b) r1/λ = 0.021 and e/λ = 0.001.
