Efficient butt-coupling of surface plasmons on a silver-air interface | Zendy

Caitlin Fisher | Zendy; L. C. Botten | Zendy; Christopher G. Poulton | Zendy; Ross C. McPhedran | Zendy; C. Martijn de Sterke | Zendy

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Efficient butt-coupling of surface plasmons on a silver-air interface

Author(s) -

Caitlin Fisher,

L. C. Botten,

Christopher G. Poulton,

Ross C. McPhedran,

C. Martijn de Sterke

Publication year - 2015

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.2202452

Subject(s) - coupling (piping) , surface plasmon , materials science , plasmon , optics , wavelength , optoelectronics , photonics , localized surface plasmon , surface plasmon polariton , physics , metallurgy

Butt-coupling of light into a surface plasmon is a simple and compact coupling method with a range of potential uses in photonic circuitry. Although butt-coupling has been successfully implemented in many coupling configurations, the coupling effectiveness is not fully understood. Here, we present a semi-analytical study which models the coupling efficiency of an incident beam into a surface plasmon on silver in the presence of loss using an projection method in one dimension. We find that the coupling efficiencies for silver between the wavelengths of 0:38 - 1:6 μm reach 77 - 88% with optimum incident beam parameters.

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