Abstract
The excitation of surface plasmons in metallic spheres is studied theoretically. The metallic sphere is supposed to be of the Drude type. The modes excitations for metallic spheres, like the dielectric spheres are observed as peaks in the total scattering cross section. Under excitation condition, the modes are behaved as waves that propagates along the circumference, but in the sphere, its intensity is highly confined to the surface. The number of modes observed depends on the radius of the sphere.
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