کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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521148 | 867755 | 2006 | 18 صفحه PDF | دانلود رایگان |

We describe Fourier pseudospectral time-domain simulations, carried out in order to study light interacting with a metallic nanoscale object. The difficulty of using Fourier methods to accurately predict the electromagnetic scattering in such problems arises from the discontinuity in the dielectric function along the surface of the metallic object. Standard Fourier methods lead to oscillatory behavior in approximating solutions that are nonsmooth or that have steep gradients. By applying the Gegenbauer reconstruction technique as a postprocessing method to the Fourier pseudospectral solution, we successfully reduce the oscillations after postprocessing.Our computational results, including comparison with finite-difference time-domain simulations, demonstrate the efficiency and accuracy of the method.
Journal: Journal of Computational Physics - Volume 213, Issue 2, 10 April 2006, Pages 730–747