Nanowire Plasmon Excitation by Adiabatic Mode Transformation

Abstract

We show with both experiment and calculation that highly confined surface plasmon polaritons can be efficiently excited on metallic nanowires through the process of mode transformation. One specific mode in a metallic waveguide is identified that adiabatically transforms to the confined nanowire mode as the waveguide width is reduced. Phase- and polarization-sensitive near-field investigation reveals the characteristic antisymmetric polarization nature of the mode and explains the coupling mechanism.

Keywords

NanowirePolarization (electrochemistry)PlasmonExcitationExcited stateAdiabatic processSurface plasmon polaritonSurface plasmonMaterials scienceAntisymmetric relationPolaritonWaveguideCondensed matter physicsCoupling (piping)OptoelectronicsPhysicsAtomic physicsQuantum mechanics

Affiliated Institutions

Institute for Atomic and Molecular Physics NL

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Publication Info

Year: 2009
Type: article
Volume: 102
Issue: 20
Pages: 203904-203904
Citations: 234
Access: Closed

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APA Style

                            
                                
                                    Ewold Verhagen, 
                                
                                    Marko Spasenović, 
                                
                                    Albert Polman
                                
                                et al.
                            
                            (2009). 
                            Nanowire Plasmon Excitation by Adiabatic Mode Transformation. 
                            Physical Review Letters
                            , 102
                            (20)
                            , 203904-203904.
                            https://doi.org/10.1103/physrevlett.102.203904
                        

Identifiers

DOI: 10.1103/physrevlett.102.203904