Compact and Wide-band Hybrid Metal-Insulator Plasmonic Directional Coupler

• Authors: Mahmoud Talafi Noghani , Mohammad H. Vadjed Samiei
• Languages of publication: EN

Abstracts

EN

A compact and wideband plasmonic directional coupler is proposed based on a hybrid metal-insulator slab waveguide (HMISW). A transfer matrix method (TMM) is adopted to analyze the multilayer structure. The hybrid waveguide is composed of a metallic layer of silver and two dielectric layers of silica (SiO2) and silicon (Si) with high index contrast. Coupling length and maximum transferred power are optimized according to dielectric layer thicknesses. It is shown that submicron coupling length is achieved with a wide bandwidth and high efficiency, being advantageous to conventional directional couplers.

Discipline

• PHYSICS: PHYSICS

• Publisher: Photonics Society of Poland
• Journal: Photonics Letters of Poland
• Year: 2014
• Volume: 6
• Issue: 3
• Pages: 108-110

Dates

published

30 - 9 - 2014

accepted

08 - 9 - 2014

received

20 - 6 - 2014

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• Document Type: article

Identifiers

DOI

10.4302/plp.2014.3.11