ISSN:
1349-9432
Keywords:
light scattering
;
field enhancement
;
metal particle
;
local plasmon
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We calculate the scattered local field around a small gold sphere on dielectric substrates which is illuminated by a collimated monochromatic beam. The numerical results show the field between the sphere and the substrate is much enhanced when the sphere is illuminated by a p-polarized beam. The enhanced area is very localized between the sphere and the substrate and the diameter of the enhanced area on the surface of the substrate is one fifth of the sphere diameter. The field increases as the gap distance decreases or as the refractive index of the substrate increases.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s10043-999-0211-4
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