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Proceedings Paper

Comparison of electromagnetic field solvers for the 3D analysis of plasmonic nanoantennas
Author(s): Johannes Hoffmann; Christian Hafner; Patrick Leidenberger; Jan Hesselbarth; Sven Burger
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Paper Abstract

Plasmonic nano antennas are highly attractive at optical frequencies due to their strong resonances - even when their size is smaller than the wavelength - and because of their potential of extreme field enhancement. Such antennas may be applied for sensing of biological nano particles as well as for single molecule detection. Because of considerable material losses and strong dispersion of metals at optical frequencies, the numerical analysis of plasmonic antennas is very demanding. An additional difficulty is caused when very narrow gaps between nano particles are utilized for increasing the field enhancement. In this paper we discuss the main difficulties of time domain solvers, namely FDTD and FVTD and we compare various frequency domain solvers, namely the commercial FEM packages JCMsuite, Comsol, HFSS, and Microwave Studio with the semi-analytic MMP code that may be used as a reference due to its fast convergence and high accuracy. The current version of this paper has had a correction made to it at the request of the author. Please see the linked Errata for further details.

Paper Details

Date Published: 17 June 2009
PDF: 11 pages
Proc. SPIE 7390, Modeling Aspects in Optical Metrology II, 73900J (17 June 2009);
Show Author Affiliations
Johannes Hoffmann, ETH Zürich (Switzerland)
Christian Hafner, ETH Zürich (Switzerland)
Patrick Leidenberger, ETH Zürich (Switzerland)
Jan Hesselbarth, ETH Zürich (Switzerland)
Sven Burger, Zuse Institute Berlin (Germany)

Published in SPIE Proceedings Vol. 7390:
Modeling Aspects in Optical Metrology II
Harald Bosse; Bernd Bodermann; Richard M. Silver, Editor(s)

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