Journal
APPLIED PHYSICS B-LASERS AND OPTICS
Volume 115, Issue 2, Pages 237-246Publisher
SPRINGER
DOI: 10.1007/s00340-013-5594-z
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Funding
- US National Science Foundation (NSF Grant) [CMMI-0800658]
- TUBITAK-1001 [109M170]
- FP-7-PEOPLE-IRG [239382 NF-RAD]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0800658] Funding Source: National Science Foundation
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We investigate the plasmonic response of gold nanospheres calculated using discrete dipole approximation validated against the results from other discretization methods, namely the finite-difference time-domain method and the finite-element methods. Comparisons are also made with calculations from analytical methods such as the Mie solution and the null-field method with discrete sources. We consider the nanoparticle interacting with the incident field both in free space and sitting on a planar substrate. In the latter case, discrete dipole approximation with surface interaction is used; this includes the interaction with the 'image dipoles' using Sommerfeld integration.
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