Unguided plasmon-mode resonance in optically excited thin film: exact modal description of Kretschmann-Raether experiment

被引:10
作者
Brissinger, Damien [1 ]
Salomon, Laurent [1 ]
De Fornel, Frederique [1 ]
机构
[1] Univ Bourgogne, UMR CNRS 5209, ICB, Grp Opt Champ Proche, F-21078 Dijon, France
关键词
SURFACE; SILVER; WAVES; FIELD;
D O I
10.1364/JOSAB.30.000333
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
With the aim of studying electromagnetic surface wave resonance, we rigorously solve the homogeneous and inhomogeneous problem associated with an optically excited thin metallic film. We then demonstrate unambiguously that the excited eigenmode engendering plasmonic resonance in the so-called Kretschmann-Raether configuration is an unguided mode (i.e., with an anti-evanescent structure). This result, challenging the classical interpretation of the outgoing wave condition applied to surface waves, permits a quantitative interpretation of the attenuated total reflection curves. (c) 2013 Optical Society of America
引用
收藏
页码:333 / 337
页数:5
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