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 apl and bpl 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.
Lock, James A., "Interference Enhancement of the Internal Fields at Structural Scattering Resonances of a Coated Sphere" (1990). Physics Faculty Publications. 53.
Lock, James A. "Interference Enhancement of the Internal Fields at Structural Scattering Resonances of a Coated Sphere." Applied Optics 29 (1990): 3180-3187.
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