Coupling efficiency of light to surface plasmon polariton for single subwavelength holes in a gold film | Zendy

Anne-Laure Baudrion | Zendy; Fernando de LeónPérez | Zendy; Oussama Mahboub | Zendy; Andreas Hohenau | Zendy; Harald Ditlbacher | Zendy; F. J. GarcíaVidal | Zendy; José Dintinger | Zendy; Thomas W. Ebbesen | Zendy; L. Martı́n-Moreno | Zendy; Joachim R. Krenn | Zendy

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Coupling efficiency of light to surface plasmon polariton for single subwavelength holes in a gold film

Author(s) -

Anne-Laure Baudrion,

Fernando de LeónPérez,

Oussama Mahboub,

Andreas Hohenau,

Harald Ditlbacher,

F. J. GarcíaVidal,

José Dintinger,

Thomas W. Ebbesen,

L. Martı́n-Moreno,

Joachim R. Krenn

Publication year - 2008

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.003420

Subject(s) - optics , surface plasmon polariton , surface plasmon , materials science , plasmon , polariton , localized surface plasmon , excitation , surface plasmon resonance , coupling (piping) , ray , optoelectronics , physics , nanoparticle , nanotechnology , quantum mechanics , metallurgy

The excitation of surface plasmon polaritons (SPP) by focusing a laser beam on single subwavelength holes opened in a thin gold film is studied both experimentally and theoretically. By means of leakage radiation microscopy, quantitative measurements of the light-SPP coupling efficiency are performed for holes with different sizes and shapes. The system is studied theoretically by using a modal expansion method to calculate the fraction of the incident energy which is scattered by the hole into a surface plasmon. We demonstrate that a single subwavelength hole can be used to generate SPP with an efficiency up to 28%.

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