Grating-assisted light coupling between long-range and short-range surface plasmon polariton modes

Author

Qing Liu ; Kee, J.S. ; Mi Kyoung Park

Author_Institution

Bioelectric Program, A*STAR (Agency for Sci., Technol. & Res.), Singapore, Singapore

fYear

2012

fDate

13-16 Dec. 2012

Firstpage

1

Lastpage

4

Abstract

We propose a new method of exciting short-range surface plasmon polariton (SR-SPP) mode with a long-rang surface plasmon polariton mode, both of which are supported by a thin metal stripe embedded in a dielectric, using a double-sided anti-symmetric grating formed on the metal stripe. The effects of the metal stripe thickness, the grating corrugation depth and the number of grating periods on the transmission and reflection spectra are investigated numerically, and it is verified that light can be efficiently coupled to SR-SPP mode with the grating.

Keywords

dielectric materials; diffraction gratings; gold; light reflection; light transmission; long-range order; polaritons; short-range order; surface plasmons; Au; dielectric materials; double-sided antisymmetric grating; gold; grating corrugation depth; grating-assisted light coupling; long-range surface plasmon polariton mode; reflection spectra; short-range surface plasmon polariton mode; thin metal stripe thickness; transmission spectra; Corrugated surfaces; Gratings; Surface waves; Switches; Bragg grating; Long-range surface plasmon; Optical filter; Optical sensor; Short-range surface plasmon;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics Global Conference (PGC), 2012

Conference_Location

Singapore

Print_ISBN

978-1-4673-2513-4

Type

conf

DOI

10.1109/PGC.2012.6458027

Filename

6458027