Temnov Vasily V, Woggon Ulrike, Dintinger José, Devaux Eloise, Ebbesen Thomas W
Experimentelle Physik IIb,Universität Dortmund, Dortmund, Germany.
Opt Lett. 2007 May 15;32(10):1235-7. doi: 10.1364/ol.32.001235.
Optical transmission spectroscopy on metal films with slit-groove pairs is conducted. Spectra of the light transmitted through the slit exhibit Fabry-Perot-type interference fringes due to surface plasmons propagating between the slit and the groove. The spectral dependence of the period of interference fringes is used to determine the group velocity of surface plasmons on flat gold and silver surfaces.
对带有狭缝-凹槽对的金属薄膜进行了光透射光谱分析。透过狭缝的光的光谱由于表面等离子体在狭缝和凹槽之间传播而呈现出法布里-珀罗型干涉条纹。干涉条纹周期的光谱依赖性被用于确定平面金和银表面上表面等离子体的群速度。
