Details
| Original language | English |
|---|---|
| Pages (from-to) | 251-264 |
| Number of pages | 14 |
| Journal | Progress In Electromagnetics Research M |
| Volume | 24 |
| Publication status | Published - 2012 |
| Externally published | Yes |
Abstract
One of the main techniques for the Finite-Difference Time-Domain (FDTD) analysis of dispersive media is the Recursive Convolution (RC) method. The idea here proposed for calculating the updating FDTD equation is based on the Laplace transform and is applied to the Drude dispersion case. A novel RC-FDTD algorithm, that we call modified, is then deduced. We test our algorithm by simulating gold and silver nanospheres exposed to an optical plane wave and by comparing the results with the analytical solution. The modified algorithm guarantees a better overall accuracy of the solution, in particular at the plasmonic resonance frequencies.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Progress In Electromagnetics Research M, Vol. 24, 2012, p. 251-264.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A novel RC-FDTD algorithm for the Drude dispersion analysis
AU - Cala' Lesina, A.
AU - Vaccari, A.
AU - Bozzoli, A.
PY - 2012
Y1 - 2012
N2 - One of the main techniques for the Finite-Difference Time-Domain (FDTD) analysis of dispersive media is the Recursive Convolution (RC) method. The idea here proposed for calculating the updating FDTD equation is based on the Laplace transform and is applied to the Drude dispersion case. A novel RC-FDTD algorithm, that we call modified, is then deduced. We test our algorithm by simulating gold and silver nanospheres exposed to an optical plane wave and by comparing the results with the analytical solution. The modified algorithm guarantees a better overall accuracy of the solution, in particular at the plasmonic resonance frequencies.
AB - One of the main techniques for the Finite-Difference Time-Domain (FDTD) analysis of dispersive media is the Recursive Convolution (RC) method. The idea here proposed for calculating the updating FDTD equation is based on the Laplace transform and is applied to the Drude dispersion case. A novel RC-FDTD algorithm, that we call modified, is then deduced. We test our algorithm by simulating gold and silver nanospheres exposed to an optical plane wave and by comparing the results with the analytical solution. The modified algorithm guarantees a better overall accuracy of the solution, in particular at the plasmonic resonance frequencies.
UR - http://www.scopus.com/inward/record.url?scp=84864207792&partnerID=8YFLogxK
U2 - 10.2528/PIERM12041904
DO - 10.2528/PIERM12041904
M3 - Article
AN - SCOPUS:84864207792
VL - 24
SP - 251
EP - 264
JO - Progress In Electromagnetics Research M
JF - Progress In Electromagnetics Research M
SN - 1937-8726
ER -