Abstract
We examine the interior electromagnetic energy density of a coated nonabsorbing sphere at a number of scattering resonances. As is the case for an uncoated sphere, the interior energy density becomes large at the and resonances. It becomes especially large for p − 1 values of the coating thickness at resonance. These p − 1 enhancements are analogous to the interference maxima that occur in the intensity reflectance of two thin films in contact.
© 1990 Optical Society of America
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