Long-wavelength limit of scattering from a lossy dielectric sphere
- 1 August 1982
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 72 (8) , 1090-1091
- https://doi.org/10.1364/josa.72.001090
Abstract
It is shown that the cross section for scattering in the long-wavelength limit from a lossy dielectric sphere varies as λ-2 and not as λ-1, as is suggested in standard treatments of the subject. The λ-1 variation is in conflict with the analytic properties of the scattering amplitudes as a function of k = 2πλ-1, and this conflict is resolved when the wavelength dependence of the dielectric constant is taken into account.Keywords
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