Controlling wave-vector of propagating surface plasmon polaritons on single-crystalline gold nanoplates.
作者： Si Luo , Hangbo Yang , Yuanqing Yang , Ding Zhao , Xingxing Chen
DOI: 10.1038/SREP13424
关键词:
摘要: Surface plasmon polaritons (SPPs) propagating at metal nanostructures play an important role in breaking the diffraction limit. Chemically synthesized single-crystalline nanoplates with atomically flat surfaces provide favorable features compared traditional polycrystalline films. The excitation and propagation of leaky SPPs on micrometer sized (10–20 μm) thin (30 nm) gold are investigated utilizing leakage radiation microscopy. By varying polarization positions incident light apexes nanoplates, wave-vector (including constant direction) distributions Fourier planes can be controlled, indicating tunable SPP propagation. These results hold promise for potential development chemically as plasmonic platforms future applications.
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