Resonances of individual metal nanowires in the infrared
作者： F. Neubrech , T. Kolb , R. Lovrincic , G. Fahsold , A. Pucci
DOI: 10.1063/1.2405873
关键词: Optoelectronics 、 Microscopy 、 Light scattering 、 Nanowire 、 Dielectric 、 Molecular physics 、 Infrared 、 Materials science 、 Infrared spectroscopy 、 Resonance 、 Plasmon
摘要: With infrared spectroscopic microscopy using synchrotron light, the authors studied resonant light scattering from single metal nanowires with diameters in 100nm range and lengths of a few microns. The Au Cu were electrochemically grown polycarbonate etched ion-track membranes transferred on infrared-transparent substrates. Significant antennalike plasmon resonances observed good agreement exact light-scattering calculations. depend not only length diameter but also dielectric surrounding nanowire. maximum extinction at resonance corresponds to an electromagnetic far-field enhancement by factor about 5.
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