Open AccessPlasmonic beam deflector
Author(s) -
Ting Xu,
Changtao Wang,
Chunlei Du,
Xiangang Luo
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.004753
Subject(s) - optics , deflection (physics) , plasmon , surface plasmon polariton , surface plasmon , beam (structure) , diffraction , materials science , finite difference time domain method , physics
The authors theoretically demonstrate a plasmonic beam deflector based on the particular properties of surface plasmon polaritons in metallic nanoslits. Beam deflection ranging from 0 degrees to 90 degrees can be achieved by designing the deflector with appropriate structural parameters. Numerical illustrations of deflectors for variant deflection angles are presented through finite-difference time-domain simulation, showing good agreement with theoretical analysis. The efficiency and some factors influencing the deflection behavior are also discussed.