Journal
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
Volume 4, Issue 10, Pages 247-249Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssr.201004268
Keywords
surface plasmons; nanopore; Fabry-Perot; field enhancement; simulation
Funding
- Katholieke Universiteit Leuven
- FWO (Flanders)
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The excitation of surface plasmons in nanoslits in metal films is known to result in large electromagnetic field enhancements. The enhancement factor strongly depends on the exact geometrical parameters, such as widths and lengths. In this work, we numerically study field enhancement and transmission resonances inside short nanoslits (nanopores) with varying lengths using three-dimensional finite difference time domain (FDTD) simulations. The results indicate that the excitation of highly confined lateral Fabry-Perot surface plasmon resonances results in enhancement factors greatly exceeding the two-dimensional case. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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