NEAR-FIELD SCATTERED BY A DIELECTRIC ROD BELOW A METALLIC SURFACE

被引:52
作者
PINCEMIN, F
SENTENAC, A
GREFFET, JJ
机构
[1] Laboratoire d’Energétique Moléculaire et Macroscopique, Combustion, Ecole Centrale Paris and Centre National de la Recherche Scientifique, Châtenay-Malabry, 92295, Grande Voie des Vignes
关键词
D O I
10.1364/JOSAA.11.001117
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Scattering of a plane wave by a two-dimensional particle (i.e., a rod) below a metal surface is examined by means of a volume-integral approach based on Green's dyadic. A detailed study of the structure of the near field when surface plasmons are excited is reported. The role of image enhancement is described for p polarization. A method of measuring the dielectric constant of a metal based on the structure of the near field is proposed.
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页码:1117 / 1127
页数:11
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