Local Field Enhancement of Mid-Infrared Light in an Integrated Photonic-Plasmonic Structure

Author

Blanco-Redondo, Andrea ; Sarriugarte, Paulo ; Garcia-Adeva, Angel ; Zubia, Joseba ; Hillenbrand, Rainer

Author_Institution

Aerosp. Unit of the Ind. & Transp. Div. of Tecnalia, Parque Tecnol. de Bizkaia, Zamudio, Spain

Volume

33

Issue

2

fYear

2015

fDate

Jan.15, 15 2015

Firstpage

368

Lastpage

371

Abstract

We numerically study the local field enhancement of mid-infrared light beating the diffraction limit in an integrated photonic-plasmonic structure. The light is locally transferred from a photonic crystal waveguide to a metallic transmission line on top of it. The transmission line connects the two sections of the photonic crystal waveguide in a passage configuration. The field intensity is locally enhanced in the transmission line passage by a factor larger than 50, with a power transfer efficiency of 33%. This passage structure holds the promise of enabling highly sensitive miniaturized sensing schemes and mid-infrared spectroscopy equipment.

Keywords

integrated optics; light diffraction; light transmission; optical waveguide theory; photonic crystals; plasmonics; diffraction limit; field intensity; highly sensitive miniaturized sensing schemes; integrated photonic-plasmonic structure; local field enhancement; metallic transmission line; mid-infrared light; mid-infrared spectroscopy equipment; passage configuration; photonic crystal waveguide; power transfer efficiency; transmission line passage; Couplings; Optical waveguides; Photonic crystals; Photonics; Plasmons; Silicon; Wires; Local field enhancement; Photonic-plasmonic coupling; local field enhancement; metallic transmission lines; mid-infrared photonics; photonic crystal waveguides; photonic-plasmonic coupling;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2014.2382560

Filename

6990487