Investigation of coupling length in a semi-cylindrical surface plasmonic coupler

Investigation of coupling length in a semi-cylindrical surface plasmonic coupler

We have investigated the performance of a nano-optical directional coupler based on gap plasmon waveguides. The coupler consists of two waveguides having a localized coupled plasmon propagating between two semi-cylindrical surfaces. After introducing a fundamental mode of studied waveguides, effects...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Applied physics. A, Materials science & processing Materials science & processing, 2011-06, Vol.103 (3), p.741-744
Hauptverfasser: Dastmalchi, Pouya, Granpayeh, Nosrat, Rasouli Disfani, Majid
Format: Artikel
Sprache:eng
Schlagworte:
Characterization and Evaluation of Materials
Condensed Matter Physics
Finite difference method
Joining
Machines
Manufacturing
Mathematical analysis
Nanocomposites
Nanostructure
Nanotechnology
Optical and Electronic Materials
Physics
Physics and Astronomy
Plasmonics
Plasmons
Processes
Surfaces and Interfaces
Thin Films
Waveguides
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We have investigated the performance of a nano-optical directional coupler based on gap plasmon waveguides. The coupler consists of two waveguides having a localized coupled plasmon propagating between two semi-cylindrical surfaces. After introducing a fundamental mode of studied waveguides, effects of the structure parameters on the coupling length are shown. Simulation results of the coupler obtained by the compact-2D finite-difference time-domain (FDTD) method comply with those derived by an analytic method with the aid of the finite-element frequency-domain (FEFD) software package of COMSOL.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-010-6238-3