Institut für Nanotechnologie, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany.
Opt Lett. 2010 Nov 1;35(21):3661-3. doi: 10.1364/OL.35.003661.
Effective symmetric and antisymmetric eigenmodes of coupled plasmonic resonances play a crucial role in many photonic metamaterials. Recently, we discussed a particular arrangement of metallic split-ring resonators that is planar, hence enabling direct experimental access to the different eigenmodes via near-field optical microscopy. In this Letter, corresponding optical experiments are presented and compared with simple theoretical modeling, providing a direct confirmation of our previous, more indirect conclusions.
耦合等离子体共振的有效对称和反对称本征模式在许多光子超材料中起着至关重要的作用。最近，我们讨论了一种特殊的金属分环谐振器排列方式，它是平面的，因此可以通过近场光学显微镜直接实验获得不同的本征模式。在这封信中，我们给出了相应的光学实验，并与简单的理论模型进行了比较，直接证实了我们之前更间接的结论。
