Journal
JOURNAL OF MODERN OPTICS
Volume 57, Issue 5, Pages 356-365Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500341003628702
Keywords
localised surface-plasmon; Mie theory; T-Matrix; discrete-dipole approximation; finite-element; finite-difference time-domain
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Funding
- Hewlett Packard (Bristol)
- Royal Society
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A comparison is presented of a number of simulation techniques that are used to compute the scattering of electromagnetic radiation by metallic nanostructures. The simulation techniques considered here are Mie theory, the T-Matrix null-field method, the discrete-dipole approximation, the finite-element method and the finite-difference time-domain method. The suitability of each technique is compared in terms of the accuracy, computation time and the range of geometries to which it can be applied. Using each technique, we perform example calculations by simulating the optical response of an 80 nm diameter Au sphere in vacuum. Our main conclusions are summarised in tabulated form, so that the findings presented in this article may serve as a useful reference guide to those looking for suitable numerical tools to model the optical response of metallic nanostructures.
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