Comparison of gold and silver dispersion laws suitable for FDTD simulations

We show that it is possible to increase the accuracy of gold and silver permittivity description by using the Drude–critical points model rather than the widely used Drude–Lorentz model. We also show the effect of this improvement on the extinction efficiency and near-field intensity precision.

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Bibliographic Details
Published in:	Applied physics. B, Lasers and optics Vol. 93; no. 1; pp. 139 - 143
Main Authors:	Vial, A., Laroche, T.
Format:	Journal Article
Language:	English
Published:	Berlin/Heidelberg Springer-Verlag 01-10-2008 Springer Verlag
Subjects:	Computer simulation Dielectric constant Dispersions Engineering Engineering Sciences Gold Lasers Mathematical models Micro and nanotechnologies Microelectronics Optical Devices Optics Permittivity Photonics Physical Chemistry Physics Physics and Astronomy Quantum Optics Silver 42.25.Fx 71.45.Gm
Online Access:	Get full text
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Description
Summary:	We show that it is possible to increase the accuracy of gold and silver permittivity description by using the Drude–critical points model rather than the widely used Drude–Lorentz model. We also show the effect of this improvement on the extinction efficiency and near-field intensity precision.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0946-2171 1432-0649
DOI:	10.1007/s00340-008-3202-4