Manipulating Surface Plasmon Polaritons Using F-Shaped Nanoslits Array

Author

Liang Cao ; Wenting Li ; Yongkai Wang ; Xiaojun Tian ; Guian Li ; Hairong Zheng ; Zhongyue Zhang

Author_Institution

Sch. of Phys. & Inf. Technol., Shaanxi Normal Univ., Xi´an, China

Volume

26

Issue

12

fYear

2014

fDate

41805

Firstpage

1247

Lastpage

1250

Abstract

F-shaped nanoslits were arranged linearly and circularly to manipulate surface plasmon polaritons (SPPs) using circular polarization illumination. Numerical calculations show that when F-shaped nanoslits are linearly arranged, the electric field distribution follows unidirectional stripe-shaped patterns. Focusing is observed with a circular arrangement of the nanoslits under circular polarization illumination with specific handedness. For the latter geometry, electric fields are greatly enhanced and converge to inside the circle. These results are relevant for the design of nanophotonic devices with applications sensitive to polarization, focusing SPPs, and generating large electric fields.

Keywords

light polarisation; nanophotonics; polaritons; surface plasmons; F-shaped nanoslits array; circular arrangement; circular polarization illumination; electric field distribution; handedness; nanophotonic devices; surface plasmon polaritons; unidirectional stripe-shaped patterns; Arrays; Electric fields; Lighting; Optical surface waves; Plasmons; Polarization; Surface waves; Finite element method; plasmonics; surface plasmon polaritons;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2319354

Filename

6804639