Applicability of Quasi-Static and Rayleigh Approximations for Spheroidal Particles

摘要

Expressions are obtained for the efficiency of absorption and scattering of radiation by uniform spheroids in the quasi-static approximation and the region of their applicability is studied. The prolate and oblate nonabsorbing particles with refractive indices. 1.1 ≤ n ≤ 10 and axial ratios 1.1 ≤ a/b ≤ 100 were studied. The approximation expressions are found for the particle size at which the efficiency factors are calculated in the quasi-static approximation with an accuracy of 1%.