Ma. Karam et Ak. Fung, ELECTROMAGNETIC ENERGY ABSORBED WITHIN A MIE SPHERE, Journal of electromagnetic waves and applications, 7(10), 1993, pp. 1379-1387
The formulations of the extinction and scattering losses of an electro
magnetic plane wave exciting a Mie sphere are well known in the litera
ture. However the absorption loss does not have an expression of its o
wn. In this study, an expression for the electromagnetic energy absorb
ed within a Mie sphere is derived directly from Ohms' law in terms of
the inner field Mie coefficients. This expression is verified as the d
ifference between the extinction and the scattering losses which are f
ormulated in terms of the scattered field Mie coefficients. This absor
bed energy expression can be used to check the accuracy of the calcula
ted extinction and scattering losses of Mie spheres. Also, in reaching
to the expression giving the difference between the extinction and sc
attering losses the relations between the inner and scattered field Mi
e coefficients are revealed.