AbstractsBiology & Animal Science

Surface Plasmon Polariton Mediated Coupling of Cavity Modes in Nanostructured Slit Arrays Analyzed by Electron Energy Loss Spectroscopy in a Transmission Electron Microscope

by Roman Michael Walther

Institution: Universität Karlsruhe
Year: 2015
Keywords: Plasmonics, Surface Plasmon Polariton, Electron Energy Loss Spectroscopy, Transmission Electron Microscopy
Record ID: 1118125
Full text PDF: http://digbib.ubka.uni-karlsruhe.de/volltexte/documents/3438826


Surface plasmon polaritons supported by the walls of rectangular slits in a thin Au film hybridize with resonant cavity modes in the slits. The coupling of the hybridized surface plasmon polariton cavity modes in slit arrays with respect to varying the slit size, inter-slit distance and number of slits was analyzed by electron energy loss spectroscopy in a transmission electron microscope. Strong next-neighbor coupling as well as mode splitting dependent on the inter-slit distance was observed.